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Finding the Fourth Proportional to 130,287.46, 195,169.11 and 98,751.46

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Solution

The fourth proportional to 130,287.46, 195,169.11 and 98,751.46 is: 147,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,287.46 : 195,169.11 = 98,751.46 : x
  2. Step 2: Convert to fraction form
    130,287.46/195,169.11 = 98,751.46/x
  3. Step 3: Cross multiply
    130,287.46x = 195,169.11 × 98,751.46
  4. Step 4: Simplify right side
    130,287.46x = 19,273,234,559.40
  5. Step 5: Solve for x
    x = 19,273,234,559.40/130,287.46
  6. Step 6: Final answer
    x = 147,928.55

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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.