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Finding the Fourth Proportional to 74,956.70, 112,420.65 and 22,367.90

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Solution

The fourth proportional to 74,956.70, 112,420.65 and 22,367.90 is: 33,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,956.70 : 112,420.65 = 22,367.90 : x
  2. Step 2: Convert to fraction form
    74,956.70/112,420.65 = 22,367.90/x
  3. Step 3: Cross multiply
    74,956.70x = 112,420.65 × 22,367.90
  4. Step 4: Simplify right side
    74,956.70x = 2,514,613,857.14
  5. Step 5: Solve for x
    x = 2,514,613,857.14/74,956.70
  6. Step 6: Final answer
    x = 33,547.55

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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.