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Finding the Fourth Proportional to 144,025.80, 215,649.90 and 144,025.80

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Solution

The fourth proportional to 144,025.80, 215,649.90 and 144,025.80 is: 215,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,025.80 : 215,649.90 = 144,025.80 : x
  2. Step 2: Convert to fraction form
    144,025.80/215,649.90 = 144,025.80/x
  3. Step 3: Cross multiply
    144,025.80x = 215,649.90 × 144,025.80
  4. Step 4: Simplify right side
    144,025.80x = 31,059,149,367.42
  5. Step 5: Solve for x
    x = 31,059,149,367.42/144,025.80
  6. Step 6: Final answer
    x = 215,649.90

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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.