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Finding the Fourth Proportional to 259,650.80, 389,476.20 and 93,417.20

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Solution

The fourth proportional to 259,650.80, 389,476.20 and 93,417.20 is: 140,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,650.80 : 389,476.20 = 93,417.20 : x
  2. Step 2: Convert to fraction form
    259,650.80/389,476.20 = 93,417.20/x
  3. Step 3: Cross multiply
    259,650.80x = 389,476.20 × 93,417.20
  4. Step 4: Simplify right side
    259,650.80x = 36,383,776,070.64
  5. Step 5: Solve for x
    x = 36,383,776,070.64/259,650.80
  6. Step 6: Final answer
    x = 140,125.80

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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.