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Finding the Fourth Proportional to 86,710.91, 130,066.41 and 24,381.41

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Solution

The fourth proportional to 86,710.91, 130,066.41 and 24,381.41 is: 36,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,710.91 : 130,066.41 = 24,381.41 : x
  2. Step 2: Convert to fraction form
    86,710.91/130,066.41 = 24,381.41/x
  3. Step 3: Cross multiply
    86,710.91x = 130,066.41 × 24,381.41
  4. Step 4: Simplify right side
    86,710.91x = 3,171,201,819.11
  5. Step 5: Solve for x
    x = 3,171,201,819.11/86,710.91
  6. Step 6: Final answer
    x = 36,572.12

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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.