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Finding the Fourth Proportional to 169,966.60, 255,047.10 and 117,413.80

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Solution

The fourth proportional to 169,966.60, 255,047.10 and 117,413.80 is: 176,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,966.60 : 255,047.10 = 117,413.80 : x
  2. Step 2: Convert to fraction form
    169,966.60/255,047.10 = 117,413.80/x
  3. Step 3: Cross multiply
    169,966.60x = 255,047.10 × 117,413.80
  4. Step 4: Simplify right side
    169,966.60x = 29,946,049,189.98
  5. Step 5: Solve for x
    x = 29,946,049,189.98/169,966.60
  6. Step 6: Final answer
    x = 176,187.85

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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.