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Finding the Fourth Proportional to 112,008.90, 168,043.05 and 48,801.90

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Solution

The fourth proportional to 112,008.90, 168,043.05 and 48,801.90 is: 73,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,008.90 : 168,043.05 = 48,801.90 : x
  2. Step 2: Convert to fraction form
    112,008.90/168,043.05 = 48,801.90/x
  3. Step 3: Cross multiply
    112,008.90x = 168,043.05 × 48,801.90
  4. Step 4: Simplify right side
    112,008.90x = 8,200,820,121.80
  5. Step 5: Solve for x
    x = 8,200,820,121.80/112,008.90
  6. Step 6: Final answer
    x = 73,215.79

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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.