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Finding the Fourth Proportional to 393,652.61, 590,572.62 and 127,413.10

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Solution

The fourth proportional to 393,652.61, 590,572.62 and 127,413.10 is: 191,149.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,652.61 : 590,572.62 = 127,413.10 : x
  2. Step 2: Convert to fraction form
    393,652.61/590,572.62 = 127,413.10/x
  3. Step 3: Cross multiply
    393,652.61x = 590,572.62 × 127,413.10
  4. Step 4: Simplify right side
    393,652.61x = 75,246,689,027.54
  5. Step 5: Solve for x
    x = 75,246,689,027.54/393,652.61
  6. Step 6: Final answer
    x = 191,149.98

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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.