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Finding the Fourth Proportional to 100,976,739.90, 151,465,109.85 and 100,976,739.90

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Solution

The fourth proportional to 100,976,739.90, 151,465,109.85 and 100,976,739.90 is: 151,465,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,976,739.90 : 151,465,109.85 = 100,976,739.90 : x
  2. Step 2: Convert to fraction form
    100,976,739.90/151,465,109.85 = 100,976,739.90/x
  3. Step 3: Cross multiply
    100,976,739.90x = 151,465,109.85 × 100,976,739.90
  4. Step 4: Simplify right side
    100,976,739.90x = 15,294,453,001,248,378
  5. Step 5: Solve for x
    x = 15,294,453,001,248,378/100,976,739.90
  6. Step 6: Final answer
    x = 151,465,109.85

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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.