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Finding the Fourth Proportional to 144,375.16, 216,586.10 and 44,512

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Solution

The fourth proportional to 144,375.16, 216,586.10 and 44,512 is: 66,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,375.16 : 216,586.10 = 44,512 : x
  2. Step 2: Convert to fraction form
    144,375.16/216,586.10 = 44,512/x
  3. Step 3: Cross multiply
    144,375.16x = 216,586.10 × 44,512
  4. Step 4: Simplify right side
    144,375.16x = 9,640,680,483.20
  5. Step 5: Solve for x
    x = 9,640,680,483.20/144,375.16
  6. Step 6: Final answer
    x = 66,775.20

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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.