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Finding the Fourth Proportional to 162,645.55, 224,474.43 and 93,721.61

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Solution

The fourth proportional to 162,645.55, 224,474.43 and 93,721.61 is: 129,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,645.55 : 224,474.43 = 93,721.61 : x
  2. Step 2: Convert to fraction form
    162,645.55/224,474.43 = 93,721.61/x
  3. Step 3: Cross multiply
    162,645.55x = 224,474.43 × 93,721.61
  4. Step 4: Simplify right side
    162,645.55x = 21,038,103,392.45
  5. Step 5: Solve for x
    x = 21,038,103,392.45/162,645.55
  6. Step 6: Final answer
    x = 129,349.39

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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.