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Finding the Fourth Proportional to 175,364.60, 262,874.10 and 86,631.80

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Solution

The fourth proportional to 175,364.60, 262,874.10 and 86,631.80 is: 129,862.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,364.60 : 262,874.10 = 86,631.80 : x
  2. Step 2: Convert to fraction form
    175,364.60/262,874.10 = 86,631.80/x
  3. Step 3: Cross multiply
    175,364.60x = 262,874.10 × 86,631.80
  4. Step 4: Simplify right side
    175,364.60x = 22,773,256,456.38
  5. Step 5: Solve for x
    x = 22,773,256,456.38/175,364.60
  6. Step 6: Final answer
    x = 129,862.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.