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Finding the Fourth Proportional to 86,614.80, 119,511.20 and 48,881.76

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Solution

The fourth proportional to 86,614.80, 119,511.20 and 48,881.76 is: 67,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,614.80 : 119,511.20 = 48,881.76 : x
  2. Step 2: Convert to fraction form
    86,614.80/119,511.20 = 48,881.76/x
  3. Step 3: Cross multiply
    86,614.80x = 119,511.20 × 48,881.76
  4. Step 4: Simplify right side
    86,614.80x = 5,841,917,795.71
  5. Step 5: Solve for x
    x = 5,841,917,795.71/86,614.80
  6. Step 6: Final answer
    x = 67,447.11

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1.5x scale

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.