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Finding the Fourth Proportional to 273,159.40, 409,763.40 and 104,672.92

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Solution

The fourth proportional to 273,159.40, 409,763.40 and 104,672.92 is: 157,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,159.40 : 409,763.40 = 104,672.92 : x
  2. Step 2: Convert to fraction form
    273,159.40/409,763.40 = 104,672.92/x
  3. Step 3: Cross multiply
    273,159.40x = 409,763.40 × 104,672.92
  4. Step 4: Simplify right side
    273,159.40x = 42,891,131,587.13
  5. Step 5: Solve for x
    x = 42,891,131,587.13/273,159.40
  6. Step 6: Final answer
    x = 157,018.69

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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.