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Finding the Fourth Proportional to 74,381.58, 111,572.58 and 52,293.78

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Solution

The fourth proportional to 74,381.58, 111,572.58 and 52,293.78 is: 78,440.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,381.58 : 111,572.58 = 52,293.78 : x
  2. Step 2: Convert to fraction form
    74,381.58/111,572.58 = 52,293.78/x
  3. Step 3: Cross multiply
    74,381.58x = 111,572.58 × 52,293.78
  4. Step 4: Simplify right side
    74,381.58x = 5,834,551,952.55
  5. Step 5: Solve for x
    x = 5,834,551,952.55/74,381.58
  6. Step 6: Final answer
    x = 78,440.82

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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.