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Finding the Fourth Proportional to 92,221.47, 138,365.01 and 38,926.71

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Solution

The fourth proportional to 92,221.47, 138,365.01 and 38,926.71 is: 58,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,221.47 : 138,365.01 = 38,926.71 : x
  2. Step 2: Convert to fraction form
    92,221.47/138,365.01 = 38,926.71/x
  3. Step 3: Cross multiply
    92,221.47x = 138,365.01 × 38,926.71
  4. Step 4: Simplify right side
    92,221.47x = 5,386,094,618.42
  5. Step 5: Solve for x
    x = 5,386,094,618.42/92,221.47
  6. Step 6: Final answer
    x = 58,403.91

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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.