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Finding the Fourth Proportional to 84,697.32, 127,058.28 and 45,232.89

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Solution

The fourth proportional to 84,697.32, 127,058.28 and 45,232.89 is: 67,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,697.32 : 127,058.28 = 45,232.89 : x
  2. Step 2: Convert to fraction form
    84,697.32/127,058.28 = 45,232.89/x
  3. Step 3: Cross multiply
    84,697.32x = 127,058.28 × 45,232.89
  4. Step 4: Simplify right side
    84,697.32x = 5,747,213,202.83
  5. Step 5: Solve for x
    x = 5,747,213,202.83/84,697.32
  6. Step 6: Final answer
    x = 67,855.90

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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.