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Finding the Fourth Proportional to 153,591.78, 230,353.11 and 55,095.78

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Solution

The fourth proportional to 153,591.78, 230,353.11 and 55,095.78 is: 82,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,591.78 : 230,353.11 = 55,095.78 : x
  2. Step 2: Convert to fraction form
    153,591.78/230,353.11 = 55,095.78/x
  3. Step 3: Cross multiply
    153,591.78x = 230,353.11 × 55,095.78
  4. Step 4: Simplify right side
    153,591.78x = 12,691,484,270.88
  5. Step 5: Solve for x
    x = 12,691,484,270.88/153,591.78
  6. Step 6: Final answer
    x = 82,631.27

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1.5x scale

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.