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Finding the Fourth Proportional to 138,924.79, 208,159.36 and 58,898.82

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Solution

The fourth proportional to 138,924.79, 208,159.36 and 58,898.82 is: 88,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,924.79 : 208,159.36 = 58,898.82 : x
  2. Step 2: Convert to fraction form
    138,924.79/208,159.36 = 58,898.82/x
  3. Step 3: Cross multiply
    138,924.79x = 208,159.36 × 58,898.82
  4. Step 4: Simplify right side
    138,924.79x = 12,260,340,675.96
  5. Step 5: Solve for x
    x = 12,260,340,675.96/138,924.79
  6. Step 6: Final answer
    x = 88,251.64

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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.