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Finding the Fourth Proportional to 109,714.79, 151,406.33 and 59,413.79

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Solution

The fourth proportional to 109,714.79, 151,406.33 and 59,413.79 is: 81,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,714.79 : 151,406.33 = 59,413.79 : x
  2. Step 2: Convert to fraction form
    109,714.79/151,406.33 = 59,413.79/x
  3. Step 3: Cross multiply
    109,714.79x = 151,406.33 × 59,413.79
  4. Step 4: Simplify right side
    109,714.79x = 8,995,622,841.19
  5. Step 5: Solve for x
    x = 8,995,622,841.19/109,714.79
  6. Step 6: Final answer
    x = 81,990.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.