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Finding the Fourth Proportional to 103,541.65, 155,257.80 and 44,310.40

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Solution

The fourth proportional to 103,541.65, 155,257.80 and 44,310.40 is: 66,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,541.65 : 155,257.80 = 44,310.40 : x
  2. Step 2: Convert to fraction form
    103,541.65/155,257.80 = 44,310.40/x
  3. Step 3: Cross multiply
    103,541.65x = 155,257.80 × 44,310.40
  4. Step 4: Simplify right side
    103,541.65x = 6,879,535,221.12
  5. Step 5: Solve for x
    x = 6,879,535,221.12/103,541.65
  6. Step 6: Final answer
    x = 66,442.20

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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.