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Finding the Fourth Proportional to 137,047.74, 205,675.47 and 58,217.28

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Solution

The fourth proportional to 137,047.74, 205,675.47 and 58,217.28 is: 87,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,047.74 : 205,675.47 = 58,217.28 : x
  2. Step 2: Convert to fraction form
    137,047.74/205,675.47 = 58,217.28/x
  3. Step 3: Cross multiply
    137,047.74x = 205,675.47 × 58,217.28
  4. Step 4: Simplify right side
    137,047.74x = 11,973,866,426.12
  5. Step 5: Solve for x
    x = 11,973,866,426.12/137,047.74
  6. Step 6: Final answer
    x = 87,370.04

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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.