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Finding the Fourth Proportional to 116,603.36, 174,753.12 and 84,689.36

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Solution

The fourth proportional to 116,603.36, 174,753.12 and 84,689.36 is: 126,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,603.36 : 174,753.12 = 84,689.36 : x
  2. Step 2: Convert to fraction form
    116,603.36/174,753.12 = 84,689.36/x
  3. Step 3: Cross multiply
    116,603.36x = 174,753.12 × 84,689.36
  4. Step 4: Simplify right side
    116,603.36x = 14,799,729,890.80
  5. Step 5: Solve for x
    x = 14,799,729,890.80/116,603.36
  6. Step 6: Final answer
    x = 126,923.70

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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.