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Finding the Fourth Proportional to 88,167.87, 121,674.06 and 51,871.86

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Solution

The fourth proportional to 88,167.87, 121,674.06 and 51,871.86 is: 71,584.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,167.87 : 121,674.06 = 51,871.86 : x
  2. Step 2: Convert to fraction form
    88,167.87/121,674.06 = 51,871.86/x
  3. Step 3: Cross multiply
    88,167.87x = 121,674.06 × 51,871.86
  4. Step 4: Simplify right side
    88,167.87x = 6,311,459,805.95
  5. Step 5: Solve for x
    x = 6,311,459,805.95/88,167.87
  6. Step 6: Final answer
    x = 71,584.58

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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.