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Finding the Fourth Proportional to 169,382.45, 254,031.15 and 69,570.20

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Solution

The fourth proportional to 169,382.45, 254,031.15 and 69,570.20 is: 104,337.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,382.45 : 254,031.15 = 69,570.20 : x
  2. Step 2: Convert to fraction form
    169,382.45/254,031.15 = 69,570.20/x
  3. Step 3: Cross multiply
    169,382.45x = 254,031.15 × 69,570.20
  4. Step 4: Simplify right side
    169,382.45x = 17,672,997,563.88
  5. Step 5: Solve for x
    x = 17,672,997,563.88/169,382.45
  6. Step 6: Final answer
    x = 104,337.83

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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.