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Finding the Fourth Proportional to 73,729.88, 101,684.64 and 62,300.78

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Solution

The fourth proportional to 73,729.88, 101,684.64 and 62,300.78 is: 85,922.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,729.88 : 101,684.64 = 62,300.78 : x
  2. Step 2: Convert to fraction form
    73,729.88/101,684.64 = 62,300.78/x
  3. Step 3: Cross multiply
    73,729.88x = 101,684.64 × 62,300.78
  4. Step 4: Simplify right side
    73,729.88x = 6,335,032,386.02
  5. Step 5: Solve for x
    x = 6,335,032,386.02/73,729.88
  6. Step 6: Final answer
    x = 85,922.18

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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.