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Finding the Fourth Proportional to 130,414.40, 195,751.20 and 63,929.60

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Solution

The fourth proportional to 130,414.40, 195,751.20 and 63,929.60 is: 95,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,414.40 : 195,751.20 = 63,929.60 : x
  2. Step 2: Convert to fraction form
    130,414.40/195,751.20 = 63,929.60/x
  3. Step 3: Cross multiply
    130,414.40x = 195,751.20 × 63,929.60
  4. Step 4: Simplify right side
    130,414.40x = 12,514,295,915.52
  5. Step 5: Solve for x
    x = 12,514,295,915.52/130,414.40
  6. Step 6: Final answer
    x = 95,957.93

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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.