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Finding the Fourth Proportional to 113,498.40, 169,940.40 and 88,922.40

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Solution

The fourth proportional to 113,498.40, 169,940.40 and 88,922.40 is: 133,142.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,498.40 : 169,940.40 = 88,922.40 : x
  2. Step 2: Convert to fraction form
    113,498.40/169,940.40 = 88,922.40/x
  3. Step 3: Cross multiply
    113,498.40x = 169,940.40 × 88,922.40
  4. Step 4: Simplify right side
    113,498.40x = 15,111,508,224.96
  5. Step 5: Solve for x
    x = 15,111,508,224.96/113,498.40
  6. Step 6: Final answer
    x = 133,142.92

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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.