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Finding the Fourth Proportional to 74,808, 112,236.30 and 52,341.84

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Solution

The fourth proportional to 74,808, 112,236.30 and 52,341.84 is: 78,529.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,808 : 112,236.30 = 52,341.84 : x
  2. Step 2: Convert to fraction form
    74,808/112,236.30 = 52,341.84/x
  3. Step 3: Cross multiply
    74,808x = 112,236.30 × 52,341.84
  4. Step 4: Simplify right side
    74,808x = 5,874,654,456.79
  5. Step 5: Solve for x
    x = 5,874,654,456.79/74,808
  6. Step 6: Final answer
    x = 78,529.76

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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.