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Finding the Fourth Proportional to 86,776.60, 130,167.76 and 29,849.93

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Solution

The fourth proportional to 86,776.60, 130,167.76 and 29,849.93 is: 44,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,776.60 : 130,167.76 = 29,849.93 : x
  2. Step 2: Convert to fraction form
    86,776.60/130,167.76 = 29,849.93/x
  3. Step 3: Cross multiply
    86,776.60x = 130,167.76 × 29,849.93
  4. Step 4: Simplify right side
    86,776.60x = 3,885,497,724.17
  5. Step 5: Solve for x
    x = 3,885,497,724.17/86,776.60
  6. Step 6: Final answer
    x = 44,775.87

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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.