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Finding the Fourth Proportional to 103,488.64, 155,103.10 and 44,254.65

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Solution

The fourth proportional to 103,488.64, 155,103.10 and 44,254.65 is: 66,326.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,488.64 : 155,103.10 = 44,254.65 : x
  2. Step 2: Convert to fraction form
    103,488.64/155,103.10 = 44,254.65/x
  3. Step 3: Cross multiply
    103,488.64x = 155,103.10 × 44,254.65
  4. Step 4: Simplify right side
    103,488.64x = 6,864,033,404.42
  5. Step 5: Solve for x
    x = 6,864,033,404.42/103,488.64
  6. Step 6: Final answer
    x = 66,326.44

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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.