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Finding the Fourth Proportional to 130,945.92, 196,516.70 and 88,725.88

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Solution

The fourth proportional to 130,945.92, 196,516.70 and 88,725.88 is: 133,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.92 : 196,516.70 = 88,725.88 : x
  2. Step 2: Convert to fraction form
    130,945.92/196,516.70 = 88,725.88/x
  3. Step 3: Cross multiply
    130,945.92x = 196,516.70 × 88,725.88
  4. Step 4: Simplify right side
    130,945.92x = 17,436,117,276.93
  5. Step 5: Solve for x
    x = 17,436,117,276.93/130,945.92
  6. Step 6: Final answer
    x = 133,155.11

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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.