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Finding the Fourth Proportional to 103,472.16, 155,175.43 and 44,291.94

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Solution

The fourth proportional to 103,472.16, 155,175.43 and 44,291.94 is: 66,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,472.16 : 155,175.43 = 44,291.94 : x
  2. Step 2: Convert to fraction form
    103,472.16/155,175.43 = 44,291.94/x
  3. Step 3: Cross multiply
    103,472.16x = 155,175.43 × 44,291.94
  4. Step 4: Simplify right side
    103,472.16x = 6,873,020,835.03
  5. Step 5: Solve for x
    x = 6,873,020,835.03/103,472.16
  6. Step 6: Final answer
    x = 66,423.87

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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.