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Finding the Fourth Proportional to 86,552.80, 129,877.80 and 36,624.40

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Solution

The fourth proportional to 86,552.80, 129,877.80 and 36,624.40 is: 54,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,552.80 : 129,877.80 = 36,624.40 : x
  2. Step 2: Convert to fraction form
    86,552.80/129,877.80 = 36,624.40/x
  3. Step 3: Cross multiply
    86,552.80x = 129,877.80 × 36,624.40
  4. Step 4: Simplify right side
    86,552.80x = 4,756,696,498.32
  5. Step 5: Solve for x
    x = 4,756,696,498.32/86,552.80
  6. Step 6: Final answer
    x = 54,957.16

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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.