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Finding the Fourth Proportional to 169,382.95, 254,031.89 and 69,570.70

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Solution

The fourth proportional to 169,382.95, 254,031.89 and 69,570.70 is: 104,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,382.95 : 254,031.89 = 69,570.70 : x
  2. Step 2: Convert to fraction form
    169,382.95/254,031.89 = 69,570.70/x
  3. Step 3: Cross multiply
    169,382.95x = 254,031.89 × 69,570.70
  4. Step 4: Simplify right side
    169,382.95x = 17,673,176,409.62
  5. Step 5: Solve for x
    x = 17,673,176,409.62/169,382.95
  6. Step 6: Final answer
    x = 104,338.58

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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.