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Finding the Fourth Proportional to 69,145, 95,431.62 and 52,348.84

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Solution

The fourth proportional to 69,145, 95,431.62 and 52,348.84 is: 72,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,145 : 95,431.62 = 52,348.84 : x
  2. Step 2: Convert to fraction form
    69,145/95,431.62 = 52,348.84/x
  3. Step 3: Cross multiply
    69,145x = 95,431.62 × 52,348.84
  4. Step 4: Simplify right side
    69,145x = 4,995,734,606.32
  5. Step 5: Solve for x
    x = 4,995,734,606.32/69,145
  6. Step 6: Final answer
    x = 72,250.12

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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.