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Finding the Fourth Proportional to 66,063.92, 99,123.68 and 41,124.84

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Solution

The fourth proportional to 66,063.92, 99,123.68 and 41,124.84 is: 61,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,063.92 : 99,123.68 = 41,124.84 : x
  2. Step 2: Convert to fraction form
    66,063.92/99,123.68 = 41,124.84/x
  3. Step 3: Cross multiply
    66,063.92x = 99,123.68 × 41,124.84
  4. Step 4: Simplify right side
    66,063.92x = 4,076,445,480.21
  5. Step 5: Solve for x
    x = 4,076,445,480.21/66,063.92
  6. Step 6: Final answer
    x = 61,704.57

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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.