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Finding the Fourth Proportional to 75,125.54, 103,678.25 and 43,296.49

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Solution

The fourth proportional to 75,125.54, 103,678.25 and 43,296.49 is: 59,752.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,125.54 : 103,678.25 = 43,296.49 : x
  2. Step 2: Convert to fraction form
    75,125.54/103,678.25 = 43,296.49/x
  3. Step 3: Cross multiply
    75,125.54x = 103,678.25 × 43,296.49
  4. Step 4: Simplify right side
    75,125.54x = 4,488,904,227.46
  5. Step 5: Solve for x
    x = 4,488,904,227.46/75,125.54
  6. Step 6: Final answer
    x = 59,752.04

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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.