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Finding the Fourth Proportional to 235,527.52, 353,385.66 and 85,778.24

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Solution

The fourth proportional to 235,527.52, 353,385.66 and 85,778.24 is: 128,701.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,527.52 : 353,385.66 = 85,778.24 : x
  2. Step 2: Convert to fraction form
    235,527.52/353,385.66 = 85,778.24/x
  3. Step 3: Cross multiply
    235,527.52x = 353,385.66 × 85,778.24
  4. Step 4: Simplify right side
    235,527.52x = 30,312,799,956.04
  5. Step 5: Solve for x
    x = 30,312,799,956.04/235,527.52
  6. Step 6: Final answer
    x = 128,701.73

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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.