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Finding the Fourth Proportional to 63,178.89, 87,186.84 and 34,884.57

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Solution

The fourth proportional to 63,178.89, 87,186.84 and 34,884.57 is: 48,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,178.89 : 87,186.84 = 34,884.57 : x
  2. Step 2: Convert to fraction form
    63,178.89/87,186.84 = 34,884.57/x
  3. Step 3: Cross multiply
    63,178.89x = 87,186.84 × 34,884.57
  4. Step 4: Simplify right side
    63,178.89x = 3,041,475,423.06
  5. Step 5: Solve for x
    x = 3,041,475,423.06/63,178.89
  6. Step 6: Final answer
    x = 48,140.69

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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.