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Finding the Fourth Proportional to 273,386.70, 410,080.05 and 173,987.55

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Solution

The fourth proportional to 273,386.70, 410,080.05 and 173,987.55 is: 260,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,386.70 : 410,080.05 = 173,987.55 : x
  2. Step 2: Convert to fraction form
    273,386.70/410,080.05 = 173,987.55/x
  3. Step 3: Cross multiply
    273,386.70x = 410,080.05 × 173,987.55
  4. Step 4: Simplify right side
    273,386.70x = 71,348,823,203.38
  5. Step 5: Solve for x
    x = 71,348,823,203.38/273,386.70
  6. Step 6: Final answer
    x = 260,981.33

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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.