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Finding the Fourth Proportional to 172,967.64, 238,695.66 and 97,515.96

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Solution

The fourth proportional to 172,967.64, 238,695.66 and 97,515.96 is: 134,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,967.64 : 238,695.66 = 97,515.96 : x
  2. Step 2: Convert to fraction form
    172,967.64/238,695.66 = 97,515.96/x
  3. Step 3: Cross multiply
    172,967.64x = 238,695.66 × 97,515.96
  4. Step 4: Simplify right side
    172,967.64x = 23,276,636,432.73
  5. Step 5: Solve for x
    x = 23,276,636,432.73/172,967.64
  6. Step 6: Final answer
    x = 134,572.20

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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.