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Finding the Fourth Proportional to 113,750.80, 170,626.20 and 112,001.20

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Solution

The fourth proportional to 113,750.80, 170,626.20 and 112,001.20 is: 168,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,750.80 : 170,626.20 = 112,001.20 : x
  2. Step 2: Convert to fraction form
    113,750.80/170,626.20 = 112,001.20/x
  3. Step 3: Cross multiply
    113,750.80x = 170,626.20 × 112,001.20
  4. Step 4: Simplify right side
    113,750.80x = 19,110,339,151.44
  5. Step 5: Solve for x
    x = 19,110,339,151.44/113,750.80
  6. Step 6: Final answer
    x = 168,001.80

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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.