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Finding the Fourth Proportional to 127,572.72, 191,368.86 and 38,833.80

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Solution

The fourth proportional to 127,572.72, 191,368.86 and 38,833.80 is: 58,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,572.72 : 191,368.86 = 38,833.80 : x
  2. Step 2: Convert to fraction form
    127,572.72/191,368.86 = 38,833.80/x
  3. Step 3: Cross multiply
    127,572.72x = 191,368.86 × 38,833.80
  4. Step 4: Simplify right side
    127,572.72x = 7,431,580,035.47
  5. Step 5: Solve for x
    x = 7,431,580,035.47/127,572.72
  6. Step 6: Final answer
    x = 58,253.68

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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.