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Finding the Fourth Proportional to 124,572.96, 171,915.44 and 70,862.96

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Solution

The fourth proportional to 124,572.96, 171,915.44 and 70,862.96 is: 97,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,572.96 : 171,915.44 = 70,862.96 : x
  2. Step 2: Convert to fraction form
    124,572.96/171,915.44 = 70,862.96/x
  3. Step 3: Cross multiply
    124,572.96x = 171,915.44 × 70,862.96
  4. Step 4: Simplify right side
    124,572.96x = 12,182,436,948.10
  5. Step 5: Solve for x
    x = 12,182,436,948.10/124,572.96
  6. Step 6: Final answer
    x = 97,793.59

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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.