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Finding the Fourth Proportional to 58,166.70, 87,215.01 and 26,139.90

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Solution

The fourth proportional to 58,166.70, 87,215.01 and 26,139.90 is: 39,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,166.70 : 87,215.01 = 26,139.90 : x
  2. Step 2: Convert to fraction form
    58,166.70/87,215.01 = 26,139.90/x
  3. Step 3: Cross multiply
    58,166.70x = 87,215.01 × 26,139.90
  4. Step 4: Simplify right side
    58,166.70x = 2,279,791,639.90
  5. Step 5: Solve for x
    x = 2,279,791,639.90/58,166.70
  6. Step 6: Final answer
    x = 39,194.10

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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.