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Finding the Fourth Proportional to 132,613.88, 198,926.28 and 39,119.63

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Solution

The fourth proportional to 132,613.88, 198,926.28 and 39,119.63 is: 58,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,613.88 : 198,926.28 = 39,119.63 : x
  2. Step 2: Convert to fraction form
    132,613.88/198,926.28 = 39,119.63/x
  3. Step 3: Cross multiply
    132,613.88x = 198,926.28 × 39,119.63
  4. Step 4: Simplify right side
    132,613.88x = 7,781,921,476.25
  5. Step 5: Solve for x
    x = 7,781,921,476.25/132,613.88
  6. Step 6: Final answer
    x = 58,681.05

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1.5x scale

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.