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Finding the Fourth Proportional to 130,948.92, 196,521.20 and 88,728.89

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Solution

The fourth proportional to 130,948.92, 196,521.20 and 88,728.89 is: 133,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,948.92 : 196,521.20 = 88,728.89 : x
  2. Step 2: Convert to fraction form
    130,948.92/196,521.20 = 88,728.89/x
  3. Step 3: Cross multiply
    130,948.92x = 196,521.20 × 88,728.89
  4. Step 4: Simplify right side
    130,948.92x = 17,437,106,511.22
  5. Step 5: Solve for x
    x = 17,437,106,511.22/130,948.92
  6. Step 6: Final answer
    x = 133,159.61

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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.