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Finding the Fourth Proportional to 66,077.78, 99,063.81 and 34,471.98

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Solution

The fourth proportional to 66,077.78, 99,063.81 and 34,471.98 is: 51,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,077.78 : 99,063.81 = 34,471.98 : x
  2. Step 2: Convert to fraction form
    66,077.78/99,063.81 = 34,471.98/x
  3. Step 3: Cross multiply
    66,077.78x = 99,063.81 × 34,471.98
  4. Step 4: Simplify right side
    66,077.78x = 3,414,925,677.04
  5. Step 5: Solve for x
    x = 3,414,925,677.04/66,077.78
  6. Step 6: Final answer
    x = 51,680.40

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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.