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Finding the Fourth Proportional to 103,172.64, 154,717.68 and 44,034.72

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Solution

The fourth proportional to 103,172.64, 154,717.68 and 44,034.72 is: 66,034.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,172.64 : 154,717.68 = 44,034.72 : x
  2. Step 2: Convert to fraction form
    103,172.64/154,717.68 = 44,034.72/x
  3. Step 3: Cross multiply
    103,172.64x = 154,717.68 × 44,034.72
  4. Step 4: Simplify right side
    103,172.64x = 6,812,949,717.85
  5. Step 5: Solve for x
    x = 6,812,949,717.85/103,172.64
  6. Step 6: Final answer
    x = 66,034.46

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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.