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Finding the Fourth Proportional to 172,882, 238,577.16 and 93,394

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Solution

The fourth proportional to 172,882, 238,577.16 and 93,394 is: 128,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,882 : 238,577.16 = 93,394 : x
  2. Step 2: Convert to fraction form
    172,882/238,577.16 = 93,394/x
  3. Step 3: Cross multiply
    172,882x = 238,577.16 × 93,394
  4. Step 4: Simplify right side
    172,882x = 22,281,675,281.04
  5. Step 5: Solve for x
    x = 22,281,675,281.04/172,882
  6. Step 6: Final answer
    x = 128,883.72

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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.