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Finding the Fourth Proportional to 69,307.16, 103,877.72 and 27,160.96

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Solution

The fourth proportional to 69,307.16, 103,877.72 and 27,160.96 is: 40,708.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,307.16 : 103,877.72 = 27,160.96 : x
  2. Step 2: Convert to fraction form
    69,307.16/103,877.72 = 27,160.96/x
  3. Step 3: Cross multiply
    69,307.16x = 103,877.72 × 27,160.96
  4. Step 4: Simplify right side
    69,307.16x = 2,821,418,597.81
  5. Step 5: Solve for x
    x = 2,821,418,597.81/69,307.16
  6. Step 6: Final answer
    x = 40,708.91

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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.