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Finding the Fourth Proportional to 109,776.66, 151,491.96 and 59,475.66

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Solution

The fourth proportional to 109,776.66, 151,491.96 and 59,475.66 is: 82,076.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,776.66 : 151,491.96 = 59,475.66 : x
  2. Step 2: Convert to fraction form
    109,776.66/151,491.96 = 59,475.66/x
  3. Step 3: Cross multiply
    109,776.66x = 151,491.96 × 59,475.66
  4. Step 4: Simplify right side
    109,776.66x = 9,010,084,305.69
  5. Step 5: Solve for x
    x = 9,010,084,305.69/109,776.66
  6. Step 6: Final answer
    x = 82,076.50

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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.