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Finding the Fourth Proportional to 172,543.68, 238,107.60 and 97,092.36

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Solution

The fourth proportional to 172,543.68, 238,107.60 and 97,092.36 is: 133,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,543.68 : 238,107.60 = 97,092.36 : x
  2. Step 2: Convert to fraction form
    172,543.68/238,107.60 = 97,092.36/x
  3. Step 3: Cross multiply
    172,543.68x = 238,107.60 × 97,092.36
  4. Step 4: Simplify right side
    172,543.68x = 23,118,428,817.94
  5. Step 5: Solve for x
    x = 23,118,428,817.94/172,543.68
  6. Step 6: Final answer
    x = 133,985.95

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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.