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Finding the Fourth Proportional to 66,986.51, 92,446.05 and 44,286.06

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Solution

The fourth proportional to 66,986.51, 92,446.05 and 44,286.06 is: 61,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,986.51 : 92,446.05 = 44,286.06 : x
  2. Step 2: Convert to fraction form
    66,986.51/92,446.05 = 44,286.06/x
  3. Step 3: Cross multiply
    66,986.51x = 92,446.05 × 44,286.06
  4. Step 4: Simplify right side
    66,986.51x = 4,094,071,317.06
  5. Step 5: Solve for x
    x = 4,094,071,317.06/66,986.51
  6. Step 6: Final answer
    x = 61,117.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.