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Finding the Fourth Proportional to 104,780.89, 157,169.80 and 25,895.12

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Solution

The fourth proportional to 104,780.89, 157,169.80 and 25,895.12 is: 38,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,780.89 : 157,169.80 = 25,895.12 : x
  2. Step 2: Convert to fraction form
    104,780.89/157,169.80 = 25,895.12/x
  3. Step 3: Cross multiply
    104,780.89x = 157,169.80 × 25,895.12
  4. Step 4: Simplify right side
    104,780.89x = 4,069,930,701.90
  5. Step 5: Solve for x
    x = 4,069,930,701.90/104,780.89
  6. Step 6: Final answer
    x = 38,842.30

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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.