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Finding the Fourth Proportional to 60,909.40, 91,364.10 and 58,576.60

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Solution

The fourth proportional to 60,909.40, 91,364.10 and 58,576.60 is: 87,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,909.40 : 91,364.10 = 58,576.60 : x
  2. Step 2: Convert to fraction form
    60,909.40/91,364.10 = 58,576.60/x
  3. Step 3: Cross multiply
    60,909.40x = 91,364.10 × 58,576.60
  4. Step 4: Simplify right side
    60,909.40x = 5,351,798,340.06
  5. Step 5: Solve for x
    x = 5,351,798,340.06/60,909.40
  6. Step 6: Final answer
    x = 87,864.90

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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.