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Finding the Fourth Proportional to 85,332.88, 128,017.52 and 32,741.92

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Solution

The fourth proportional to 85,332.88, 128,017.52 and 32,741.92 is: 49,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,332.88 : 128,017.52 = 32,741.92 : x
  2. Step 2: Convert to fraction form
    85,332.88/128,017.52 = 32,741.92/x
  3. Step 3: Cross multiply
    85,332.88x = 128,017.52 × 32,741.92
  4. Step 4: Simplify right side
    85,332.88x = 4,191,539,398.44
  5. Step 5: Solve for x
    x = 4,191,539,398.44/85,332.88
  6. Step 6: Final answer
    x = 49,119.86

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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.