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Finding the Fourth Proportional to 66,481.04, 99,808.68 and 44,436.08

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Solution

The fourth proportional to 66,481.04, 99,808.68 and 44,436.08 is: 66,712.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,481.04 : 99,808.68 = 44,436.08 : x
  2. Step 2: Convert to fraction form
    66,481.04/99,808.68 = 44,436.08/x
  3. Step 3: Cross multiply
    66,481.04x = 99,808.68 × 44,436.08
  4. Step 4: Simplify right side
    66,481.04x = 4,435,106,489.17
  5. Step 5: Solve for x
    x = 4,435,106,489.17/66,481.04
  6. Step 6: Final answer
    x = 66,712.35

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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.