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Finding the Fourth Proportional to 130,393.40, 195,719.70 and 63,908.60

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Solution

The fourth proportional to 130,393.40, 195,719.70 and 63,908.60 is: 95,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,393.40 : 195,719.70 = 63,908.60 : x
  2. Step 2: Convert to fraction form
    130,393.40/195,719.70 = 63,908.60/x
  3. Step 3: Cross multiply
    130,393.40x = 195,719.70 × 63,908.60
  4. Step 4: Simplify right side
    130,393.40x = 12,508,172,019.42
  5. Step 5: Solve for x
    x = 12,508,172,019.42/130,393.40
  6. Step 6: Final answer
    x = 95,926.42

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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.