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Finding the Fourth Proportional to 474,772.55, 712,158.80 and 159,228.54

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Solution

The fourth proportional to 474,772.55, 712,158.80 and 159,228.54 is: 238,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,772.55 : 712,158.80 = 159,228.54 : x
  2. Step 2: Convert to fraction form
    474,772.55/712,158.80 = 159,228.54/x
  3. Step 3: Cross multiply
    474,772.55x = 712,158.80 × 159,228.54
  4. Step 4: Simplify right side
    474,772.55x = 113,396,005,176.01
  5. Step 5: Solve for x
    x = 113,396,005,176.01/474,772.55
  6. Step 6: Final answer
    x = 238,842.80

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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.