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Finding the Fourth Proportional to 67,664.90, 101,497.35 and 52,112.90

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Solution

The fourth proportional to 67,664.90, 101,497.35 and 52,112.90 is: 78,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,664.90 : 101,497.35 = 52,112.90 : x
  2. Step 2: Convert to fraction form
    67,664.90/101,497.35 = 52,112.90/x
  3. Step 3: Cross multiply
    67,664.90x = 101,497.35 × 52,112.90
  4. Step 4: Simplify right side
    67,664.90x = 5,289,321,250.82
  5. Step 5: Solve for x
    x = 5,289,321,250.82/67,664.90
  6. Step 6: Final answer
    x = 78,169.35

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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.