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Finding the Fourth Proportional to 230,697.90, 345,809.35 and 88,505.31

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Solution

The fourth proportional to 230,697.90, 345,809.35 and 88,505.31 is: 132,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,697.90 : 345,809.35 = 88,505.31 : x
  2. Step 2: Convert to fraction form
    230,697.90/345,809.35 = 88,505.31/x
  3. Step 3: Cross multiply
    230,697.90x = 345,809.35 × 88,505.31
  4. Step 4: Simplify right side
    230,697.90x = 30,605,963,184.89
  5. Step 5: Solve for x
    x = 30,605,963,184.89/230,697.90
  6. Step 6: Final answer
    x = 132,666.85

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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.