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Finding the Fourth Proportional to 75,275.61, 112,913.47 and 25,351.54

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Solution

The fourth proportional to 75,275.61, 112,913.47 and 25,351.54 is: 38,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275.61 : 112,913.47 = 25,351.54 : x
  2. Step 2: Convert to fraction form
    75,275.61/112,913.47 = 25,351.54/x
  3. Step 3: Cross multiply
    75,275.61x = 112,913.47 × 25,351.54
  4. Step 4: Simplify right side
    75,275.61x = 2,862,530,005.58
  5. Step 5: Solve for x
    x = 2,862,530,005.58/75,275.61
  6. Step 6: Final answer
    x = 38,027.32

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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.