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Finding the Fourth Proportional to 75,126.80, 103,674.98 and 41,592.80

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Solution

The fourth proportional to 75,126.80, 103,674.98 and 41,592.80 is: 57,398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.80 : 103,674.98 = 41,592.80 : x
  2. Step 2: Convert to fraction form
    75,126.80/103,674.98 = 41,592.80/x
  3. Step 3: Cross multiply
    75,126.80x = 103,674.98 × 41,592.80
  4. Step 4: Simplify right side
    75,126.80x = 4,312,132,708.14
  5. Step 5: Solve for x
    x = 4,312,132,708.14/75,126.80
  6. Step 6: Final answer
    x = 57,398.06

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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.