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Finding the Fourth Proportional to 69,033.25, 103,417.95 and 57,860.11

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Solution

The fourth proportional to 69,033.25, 103,417.95 and 57,860.11 is: 86,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,033.25 : 103,417.95 = 57,860.11 : x
  2. Step 2: Convert to fraction form
    69,033.25/103,417.95 = 57,860.11/x
  3. Step 3: Cross multiply
    69,033.25x = 103,417.95 × 57,860.11
  4. Step 4: Simplify right side
    69,033.25x = 5,983,773,962.97
  5. Step 5: Solve for x
    x = 5,983,773,962.97/69,033.25
  6. Step 6: Final answer
    x = 86,679.59

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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.