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Finding the Fourth Proportional to 75,312.67, 112,890.16 and 25,375.51

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Solution

The fourth proportional to 75,312.67, 112,890.16 and 25,375.51 is: 38,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,312.67 : 112,890.16 = 25,375.51 : x
  2. Step 2: Convert to fraction form
    75,312.67/112,890.16 = 25,375.51/x
  3. Step 3: Cross multiply
    75,312.67x = 112,890.16 × 25,375.51
  4. Step 4: Simplify right side
    75,312.67x = 2,864,644,756.09
  5. Step 5: Solve for x
    x = 2,864,644,756.09/75,312.67
  6. Step 6: Final answer
    x = 38,036.69

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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.