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Finding the Fourth Proportional to 124,627.53, 171,985.11 and 68,038.91

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Solution

The fourth proportional to 124,627.53, 171,985.11 and 68,038.91 is: 93,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,627.53 : 171,985.11 = 68,038.91 : x
  2. Step 2: Convert to fraction form
    124,627.53/171,985.11 = 68,038.91/x
  3. Step 3: Cross multiply
    124,627.53x = 171,985.11 × 68,038.91
  4. Step 4: Simplify right side
    124,627.53x = 11,701,678,560.70
  5. Step 5: Solve for x
    x = 11,701,678,560.70/124,627.53
  6. Step 6: Final answer
    x = 93,893.21

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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.