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Finding the Fourth Proportional to 130,364.52, 195,191.17 and 98,678.54

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Solution

The fourth proportional to 130,364.52, 195,191.17 and 98,678.54 is: 147,748.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,364.52 : 195,191.17 = 98,678.54 : x
  2. Step 2: Convert to fraction form
    130,364.52/195,191.17 = 98,678.54/x
  3. Step 3: Cross multiply
    130,364.52x = 195,191.17 × 98,678.54
  4. Step 4: Simplify right side
    130,364.52x = 19,261,178,819.82
  5. Step 5: Solve for x
    x = 19,261,178,819.82/130,364.52
  6. Step 6: Final answer
    x = 147,748.62

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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.