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Finding the Fourth Proportional to 472,711.44, 709,073.31 and 157,168.35

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Solution

The fourth proportional to 472,711.44, 709,073.31 and 157,168.35 is: 235,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,711.44 : 709,073.31 = 157,168.35 : x
  2. Step 2: Convert to fraction form
    472,711.44/709,073.31 = 157,168.35/x
  3. Step 3: Cross multiply
    472,711.44x = 709,073.31 × 157,168.35
  4. Step 4: Simplify right side
    472,711.44x = 111,443,877,830.53
  5. Step 5: Solve for x
    x = 111,443,877,830.53/472,711.44
  6. Step 6: Final answer
    x = 235,754.56

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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.