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Finding the Fourth Proportional to 140,378,276.90, 210,567,415.35 and 140,378,276.90

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Solution

The fourth proportional to 140,378,276.90, 210,567,415.35 and 140,378,276.90 is: 210,567,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,378,276.90 : 210,567,415.35 = 140,378,276.90 : x
  2. Step 2: Convert to fraction form
    140,378,276.90/210,567,415.35 = 140,378,276.90/x
  3. Step 3: Cross multiply
    140,378,276.90x = 210,567,415.35 × 140,378,276.90
  4. Step 4: Simplify right side
    140,378,276.90x = 29,559,090,938,119,612
  5. Step 5: Solve for x
    x = 29,559,090,938,119,612/140,378,276.90
  6. Step 6: Final answer
    x = 210,567,415.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.