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Finding the Fourth Proportional to 119,335.52, 178,933.68 and 92,307.68

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Solution

The fourth proportional to 119,335.52, 178,933.68 and 92,307.68 is: 138,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,335.52 : 178,933.68 = 92,307.68 : x
  2. Step 2: Convert to fraction form
    119,335.52/178,933.68 = 92,307.68/x
  3. Step 3: Cross multiply
    119,335.52x = 178,933.68 × 92,307.68
  4. Step 4: Simplify right side
    119,335.52x = 16,516,952,874.66
  5. Step 5: Solve for x
    x = 16,516,952,874.66/119,335.52
  6. Step 6: Final answer
    x = 138,407.68

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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.