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Finding the Fourth Proportional to 372,147.35, 558,219.81 and 102,275.87

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Solution

The fourth proportional to 372,147.35, 558,219.81 and 102,275.87 is: 153,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,147.35 : 558,219.81 = 102,275.87 : x
  2. Step 2: Convert to fraction form
    372,147.35/558,219.81 = 102,275.87/x
  3. Step 3: Cross multiply
    372,147.35x = 558,219.81 × 102,275.87
  4. Step 4: Simplify right side
    372,147.35x = 57,092,416,718.98
  5. Step 5: Solve for x
    x = 57,092,416,718.98/372,147.35
  6. Step 6: Final answer
    x = 153,413.47

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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.