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Finding the Fourth Proportional to 75,124.80, 103,672.22 and 41,590.80

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Solution

The fourth proportional to 75,124.80, 103,672.22 and 41,590.80 is: 57,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.80 : 103,672.22 = 41,590.80 : x
  2. Step 2: Convert to fraction form
    75,124.80/103,672.22 = 41,590.80/x
  3. Step 3: Cross multiply
    75,124.80x = 103,672.22 × 41,590.80
  4. Step 4: Simplify right side
    75,124.80x = 4,311,810,567.58
  5. Step 5: Solve for x
    x = 4,311,810,567.58/75,124.80
  6. Step 6: Final answer
    x = 57,395.30

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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.