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Finding the Fourth Proportional to 86,877.92, 119,891.76 and 47,133.92

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Solution

The fourth proportional to 86,877.92, 119,891.76 and 47,133.92 is: 65,044.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,877.92 : 119,891.76 = 47,133.92 : x
  2. Step 2: Convert to fraction form
    86,877.92/119,891.76 = 47,133.92/x
  3. Step 3: Cross multiply
    86,877.92x = 119,891.76 × 47,133.92
  4. Step 4: Simplify right side
    86,877.92x = 5,650,968,624.50
  5. Step 5: Solve for x
    x = 5,650,968,624.50/86,877.92
  6. Step 6: Final answer
    x = 65,044.93

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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.