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Finding the Fourth Proportional to 118,246.80, 177,370.20 and 100,532.10

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Solution

The fourth proportional to 118,246.80, 177,370.20 and 100,532.10 is: 150,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,246.80 : 177,370.20 = 100,532.10 : x
  2. Step 2: Convert to fraction form
    118,246.80/177,370.20 = 100,532.10/x
  3. Step 3: Cross multiply
    118,246.80x = 177,370.20 × 100,532.10
  4. Step 4: Simplify right side
    118,246.80x = 17,831,398,683.42
  5. Step 5: Solve for x
    x = 17,831,398,683.42/118,246.80
  6. Step 6: Final answer
    x = 150,798.15

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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.