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Finding the Fourth Proportional to 439,816.66, 659,726.62 and 187,061.02

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Solution

The fourth proportional to 439,816.66, 659,726.62 and 187,061.02 is: 280,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,816.66 : 659,726.62 = 187,061.02 : x
  2. Step 2: Convert to fraction form
    439,816.66/659,726.62 = 187,061.02/x
  3. Step 3: Cross multiply
    439,816.66x = 659,726.62 × 187,061.02
  4. Step 4: Simplify right side
    439,816.66x = 123,409,134,458.35
  5. Step 5: Solve for x
    x = 123,409,134,458.35/439,816.66
  6. Step 6: Final answer
    x = 280,592.22

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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.