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Finding the Fourth Proportional to 66,674.95, 99,881.20 and 44,170.72

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Solution

The fourth proportional to 66,674.95, 99,881.20 and 44,170.72 is: 66,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,674.95 : 99,881.20 = 44,170.72 : x
  2. Step 2: Convert to fraction form
    66,674.95/99,881.20 = 44,170.72/x
  3. Step 3: Cross multiply
    66,674.95x = 99,881.20 × 44,170.72
  4. Step 4: Simplify right side
    66,674.95x = 4,411,824,323.97
  5. Step 5: Solve for x
    x = 4,411,824,323.97/66,674.95
  6. Step 6: Final answer
    x = 66,169.15

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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.