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Finding the Fourth Proportional to 127,704.98, 176,061.12 and 89,413.04

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Solution

The fourth proportional to 127,704.98, 176,061.12 and 89,413.04 is: 123,269.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,704.98 : 176,061.12 = 89,413.04 : x
  2. Step 2: Convert to fraction form
    127,704.98/176,061.12 = 89,413.04/x
  3. Step 3: Cross multiply
    127,704.98x = 176,061.12 × 89,413.04
  4. Step 4: Simplify right side
    127,704.98x = 15,742,159,965.00
  5. Step 5: Solve for x
    x = 15,742,159,965.00/127,704.98
  6. Step 6: Final answer
    x = 123,269.74

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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.