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Finding the Fourth Proportional to 75,332.88, 103,965.12 and 41,798.88

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Solution

The fourth proportional to 75,332.88, 103,965.12 and 41,798.88 is: 57,685.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,332.88 : 103,965.12 = 41,798.88 : x
  2. Step 2: Convert to fraction form
    75,332.88/103,965.12 = 41,798.88/x
  3. Step 3: Cross multiply
    75,332.88x = 103,965.12 × 41,798.88
  4. Step 4: Simplify right side
    75,332.88x = 4,345,625,575.07
  5. Step 5: Solve for x
    x = 4,345,625,575.07/75,332.88
  6. Step 6: Final answer
    x = 57,685.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.