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Finding the Fourth Proportional to 153,905.70, 230,858.55 and 151,281.30

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Solution

The fourth proportional to 153,905.70, 230,858.55 and 151,281.30 is: 226,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,905.70 : 230,858.55 = 151,281.30 : x
  2. Step 2: Convert to fraction form
    153,905.70/230,858.55 = 151,281.30/x
  3. Step 3: Cross multiply
    153,905.70x = 230,858.55 × 151,281.30
  4. Step 4: Simplify right side
    153,905.70x = 34,924,581,560.12
  5. Step 5: Solve for x
    x = 34,924,581,560.12/153,905.70
  6. Step 6: Final answer
    x = 226,921.95

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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.