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Finding the Fourth Proportional to 484,529.61, 726,789.47 and 124,699.06

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Solution

The fourth proportional to 484,529.61, 726,789.47 and 124,699.06 is: 187,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,529.61 : 726,789.47 = 124,699.06 : x
  2. Step 2: Convert to fraction form
    484,529.61/726,789.47 = 124,699.06/x
  3. Step 3: Cross multiply
    484,529.61x = 726,789.47 × 124,699.06
  4. Step 4: Simplify right side
    484,529.61x = 90,629,963,726.90
  5. Step 5: Solve for x
    x = 90,629,963,726.90/484,529.61
  6. Step 6: Final answer
    x = 187,047.32

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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.