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Finding the Fourth Proportional to 372,139.00, 558,058.17 and 144,314.66

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Solution

The fourth proportional to 372,139.00, 558,058.17 and 144,314.66 is: 216,413.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,139.00 : 558,058.17 = 144,314.66 : x
  2. Step 2: Convert to fraction form
    372,139.00/558,058.17 = 144,314.66/x
  3. Step 3: Cross multiply
    372,139.00x = 558,058.17 × 144,314.66
  4. Step 4: Simplify right side
    372,139.00x = 80,535,972,273.48
  5. Step 5: Solve for x
    x = 80,535,972,273.48/372,139.00
  6. Step 6: Final answer
    x = 216,413.69

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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.