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Finding the Fourth Proportional to 113,414.70, 170,122.05 and 100,948.80

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Solution

The fourth proportional to 113,414.70, 170,122.05 and 100,948.80 is: 151,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,414.70 : 170,122.05 = 100,948.80 : x
  2. Step 2: Convert to fraction form
    113,414.70/170,122.05 = 100,948.80/x
  3. Step 3: Cross multiply
    113,414.70x = 170,122.05 × 100,948.80
  4. Step 4: Simplify right side
    113,414.70x = 17,173,616,801.04
  5. Step 5: Solve for x
    x = 17,173,616,801.04/113,414.70
  6. Step 6: Final answer
    x = 151,423.20

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1.5x scale

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.