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Finding the Fourth Proportional to 125,806.96, 173,668.08 and 89,934.76

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Solution

The fourth proportional to 125,806.96, 173,668.08 and 89,934.76 is: 124,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,806.96 : 173,668.08 = 89,934.76 : x
  2. Step 2: Convert to fraction form
    125,806.96/173,668.08 = 89,934.76/x
  3. Step 3: Cross multiply
    125,806.96x = 173,668.08 × 89,934.76
  4. Step 4: Simplify right side
    125,806.96x = 15,618,797,094.46
  5. Step 5: Solve for x
    x = 15,618,797,094.46/125,806.96
  6. Step 6: Final answer
    x = 124,148.91

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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.