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Finding the Fourth Proportional to 86,594.40, 129,891.60 and 58,527.90

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Solution

The fourth proportional to 86,594.40, 129,891.60 and 58,527.90 is: 87,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,594.40 : 129,891.60 = 58,527.90 : x
  2. Step 2: Convert to fraction form
    86,594.40/129,891.60 = 58,527.90/x
  3. Step 3: Cross multiply
    86,594.40x = 129,891.60 × 58,527.90
  4. Step 4: Simplify right side
    86,594.40x = 7,602,282,575.64
  5. Step 5: Solve for x
    x = 7,602,282,575.64/86,594.40
  6. Step 6: Final answer
    x = 87,791.85

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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.