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Finding the Fourth Proportional to 154,486.70, 231,730.05 and 151,862.30

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Solution

The fourth proportional to 154,486.70, 231,730.05 and 151,862.30 is: 227,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,486.70 : 231,730.05 = 151,862.30 : x
  2. Step 2: Convert to fraction form
    154,486.70/231,730.05 = 151,862.30/x
  3. Step 3: Cross multiply
    154,486.70x = 231,730.05 × 151,862.30
  4. Step 4: Simplify right side
    154,486.70x = 35,191,058,372.12
  5. Step 5: Solve for x
    x = 35,191,058,372.12/154,486.70
  6. Step 6: Final answer
    x = 227,793.45

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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.