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Finding the Fourth Proportional to 103,472.64, 155,079.09 and 44,238.69

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Solution

The fourth proportional to 103,472.64, 155,079.09 and 44,238.69 is: 66,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,472.64 : 155,079.09 = 44,238.69 : x
  2. Step 2: Convert to fraction form
    103,472.64/155,079.09 = 44,238.69/x
  3. Step 3: Cross multiply
    103,472.64x = 155,079.09 × 44,238.69
  4. Step 4: Simplify right side
    103,472.64x = 6,860,495,787.99
  5. Step 5: Solve for x
    x = 6,860,495,787.99/103,472.64
  6. Step 6: Final answer
    x = 66,302.51

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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.