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Finding the Fourth Proportional to 137,437.60, 206,215.08 and 58,588.96

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Solution

The fourth proportional to 137,437.60, 206,215.08 and 58,588.96 is: 87,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,437.60 : 206,215.08 = 58,588.96 : x
  2. Step 2: Convert to fraction form
    137,437.60/206,215.08 = 58,588.96/x
  3. Step 3: Cross multiply
    137,437.60x = 206,215.08 × 58,588.96
  4. Step 4: Simplify right side
    137,437.60x = 12,081,927,073.52
  5. Step 5: Solve for x
    x = 12,081,927,073.52/137,437.60
  6. Step 6: Final answer
    x = 87,908.45

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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.