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Finding the Fourth Proportional to 234,395.70, 323,442.90 and 131,010.54

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Solution

The fourth proportional to 234,395.70, 323,442.90 and 131,010.54 is: 180,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,395.70 : 323,442.90 = 131,010.54 : x
  2. Step 2: Convert to fraction form
    234,395.70/323,442.90 = 131,010.54/x
  3. Step 3: Cross multiply
    234,395.70x = 323,442.90 × 131,010.54
  4. Step 4: Simplify right side
    234,395.70x = 42,374,428,988.17
  5. Step 5: Solve for x
    x = 42,374,428,988.17/234,395.70
  6. Step 6: Final answer
    x = 180,781.60

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1.5x scale

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.