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Finding the Fourth Proportional to 157,753.80, 236,413.62 and 69,081.48

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Solution

The fourth proportional to 157,753.80, 236,413.62 and 69,081.48 is: 103,527.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,753.80 : 236,413.62 = 69,081.48 : x
  2. Step 2: Convert to fraction form
    157,753.80/236,413.62 = 69,081.48/x
  3. Step 3: Cross multiply
    157,753.80x = 236,413.62 × 69,081.48
  4. Step 4: Simplify right side
    157,753.80x = 16,331,802,761.76
  5. Step 5: Solve for x
    x = 16,331,802,761.76/157,753.80
  6. Step 6: Final answer
    x = 103,527.16

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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.