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Finding the Fourth Proportional to 70,762.52, 97,641.14 and 40,542.02

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Solution

The fourth proportional to 70,762.52, 97,641.14 and 40,542.02 is: 55,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,762.52 : 97,641.14 = 40,542.02 : x
  2. Step 2: Convert to fraction form
    70,762.52/97,641.14 = 40,542.02/x
  3. Step 3: Cross multiply
    70,762.52x = 97,641.14 × 40,542.02
  4. Step 4: Simplify right side
    70,762.52x = 3,958,569,050.70
  5. Step 5: Solve for x
    x = 3,958,569,050.70/70,762.52
  6. Step 6: Final answer
    x = 55,941.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.