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Finding the Fourth Proportional to 107,159.82, 147,879.84 and 59,413.18

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Solution

The fourth proportional to 107,159.82, 147,879.84 and 59,413.18 is: 81,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,159.82 : 147,879.84 = 59,413.18 : x
  2. Step 2: Convert to fraction form
    107,159.82/147,879.84 = 59,413.18/x
  3. Step 3: Cross multiply
    107,159.82x = 147,879.84 × 59,413.18
  4. Step 4: Simplify right side
    107,159.82x = 8,786,011,552.29
  5. Step 5: Solve for x
    x = 8,786,011,552.29/107,159.82
  6. Step 6: Final answer
    x = 81,989.79

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1.5x scale

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.