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Finding the Fourth Proportional to 168,020.40, 251,447.40 and 115,532.40

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Solution

The fourth proportional to 168,020.40, 251,447.40 and 115,532.40 is: 172,897.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,020.40 : 251,447.40 = 115,532.40 : x
  2. Step 2: Convert to fraction form
    168,020.40/251,447.40 = 115,532.40/x
  3. Step 3: Cross multiply
    168,020.40x = 251,447.40 × 115,532.40
  4. Step 4: Simplify right side
    168,020.40x = 29,050,321,595.76
  5. Step 5: Solve for x
    x = 29,050,321,595.76/168,020.40
  6. Step 6: Final answer
    x = 172,897.59

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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.