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Finding the Fourth Proportional to 75,446.44, 112,616.45 and 66,590.44

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Solution

The fourth proportional to 75,446.44, 112,616.45 and 66,590.44 is: 99,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,446.44 : 112,616.45 = 66,590.44 : x
  2. Step 2: Convert to fraction form
    75,446.44/112,616.45 = 66,590.44/x
  3. Step 3: Cross multiply
    75,446.44x = 112,616.45 × 66,590.44
  4. Step 4: Simplify right side
    75,446.44x = 7,499,178,956.74
  5. Step 5: Solve for x
    x = 7,499,178,956.74/75,446.44
  6. Step 6: Final answer
    x = 99,397.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.