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Finding the Fourth Proportional to 74,808.50, 112,211.65 and 34,805.10

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Solution

The fourth proportional to 74,808.50, 112,211.65 and 34,805.10 is: 52,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,808.50 : 112,211.65 = 34,805.10 : x
  2. Step 2: Convert to fraction form
    74,808.50/112,211.65 = 34,805.10/x
  3. Step 3: Cross multiply
    74,808.50x = 112,211.65 × 34,805.10
  4. Step 4: Simplify right side
    74,808.50x = 3,905,538,163.72
  5. Step 5: Solve for x
    x = 3,905,538,163.72/74,808.50
  6. Step 6: Final answer
    x = 52,207.15

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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.