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Finding the Fourth Proportional to 90,873.14, 136,368 and 44,100.50

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Solution

The fourth proportional to 90,873.14, 136,368 and 44,100.50 is: 66,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,873.14 : 136,368 = 44,100.50 : x
  2. Step 2: Convert to fraction form
    90,873.14/136,368 = 44,100.50/x
  3. Step 3: Cross multiply
    90,873.14x = 136,368 × 44,100.50
  4. Step 4: Simplify right side
    90,873.14x = 6,013,896,984
  5. Step 5: Solve for x
    x = 6,013,896,984/90,873.14
  6. Step 6: Final answer
    x = 66,179.04

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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.