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Finding the Fourth Proportional to 86,841.71, 130,324.77 and 36,956.84

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Solution

The fourth proportional to 86,841.71, 130,324.77 and 36,956.84 is: 55,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,841.71 : 130,324.77 = 36,956.84 : x
  2. Step 2: Convert to fraction form
    86,841.71/130,324.77 = 36,956.84/x
  3. Step 3: Cross multiply
    86,841.71x = 130,324.77 × 36,956.84
  4. Step 4: Simplify right side
    86,841.71x = 4,816,391,998.74
  5. Step 5: Solve for x
    x = 4,816,391,998.74/86,841.71
  6. Step 6: Final answer
    x = 55,461.74

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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.