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Finding the Fourth Proportional to 109,765.50, 151,478.01 and 59,464.50

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Solution

The fourth proportional to 109,765.50, 151,478.01 and 59,464.50 is: 82,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,765.50 : 151,478.01 = 59,464.50 : x
  2. Step 2: Convert to fraction form
    109,765.50/151,478.01 = 59,464.50/x
  3. Step 3: Cross multiply
    109,765.50x = 151,478.01 × 59,464.50
  4. Step 4: Simplify right side
    109,765.50x = 9,007,564,125.65
  5. Step 5: Solve for x
    x = 9,007,564,125.65/109,765.50
  6. Step 6: Final answer
    x = 82,061.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.