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Finding the Fourth Proportional to 116,707.80, 175,061.70 and 108,413.40

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Solution

The fourth proportional to 116,707.80, 175,061.70 and 108,413.40 is: 162,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,707.80 : 175,061.70 = 108,413.40 : x
  2. Step 2: Convert to fraction form
    116,707.80/175,061.70 = 108,413.40/x
  3. Step 3: Cross multiply
    116,707.80x = 175,061.70 × 108,413.40
  4. Step 4: Simplify right side
    116,707.80x = 18,979,034,106.78
  5. Step 5: Solve for x
    x = 18,979,034,106.78/116,707.80
  6. Step 6: Final answer
    x = 162,620.10

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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.