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Finding the Fourth Proportional to 172,487.40, 238,032.22 and 97,035.90

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Solution

The fourth proportional to 172,487.40, 238,032.22 and 97,035.90 is: 133,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,487.40 : 238,032.22 = 97,035.90 : x
  2. Step 2: Convert to fraction form
    172,487.40/238,032.22 = 97,035.90/x
  3. Step 3: Cross multiply
    172,487.40x = 238,032.22 × 97,035.90
  4. Step 4: Simplify right side
    172,487.40x = 23,097,670,696.70
  5. Step 5: Solve for x
    x = 23,097,670,696.70/172,487.40
  6. Step 6: Final answer
    x = 133,909.32

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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.