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Finding the Fourth Proportional to 125,930.50, 173,784.09 and 69,341.74

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Solution

The fourth proportional to 125,930.50, 173,784.09 and 69,341.74 is: 95,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,930.50 : 173,784.09 = 69,341.74 : x
  2. Step 2: Convert to fraction form
    125,930.50/173,784.09 = 69,341.74/x
  3. Step 3: Cross multiply
    125,930.50x = 173,784.09 × 69,341.74
  4. Step 4: Simplify right side
    125,930.50x = 12,050,491,184.92
  5. Step 5: Solve for x
    x = 12,050,491,184.92/125,930.50
  6. Step 6: Final answer
    x = 95,691.60

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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.