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Finding the Fourth Proportional to 114,727.76, 171,867.60 and 75,164.72

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Solution

The fourth proportional to 114,727.76, 171,867.60 and 75,164.72 is: 112,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,727.76 : 171,867.60 = 75,164.72 : x
  2. Step 2: Convert to fraction form
    114,727.76/171,867.60 = 75,164.72/x
  3. Step 3: Cross multiply
    114,727.76x = 171,867.60 × 75,164.72
  4. Step 4: Simplify right side
    114,727.76x = 12,918,380,031.07
  5. Step 5: Solve for x
    x = 12,918,380,031.07/114,727.76
  6. Step 6: Final answer
    x = 112,600.30

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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.