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Finding the Fourth Proportional to 410,726.80, 616,003.80 and 174,077.20

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Solution

The fourth proportional to 410,726.80, 616,003.80 and 174,077.20 is: 261,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,726.80 : 616,003.80 = 174,077.20 : x
  2. Step 2: Convert to fraction form
    410,726.80/616,003.80 = 174,077.20/x
  3. Step 3: Cross multiply
    410,726.80x = 616,003.80 × 174,077.20
  4. Step 4: Simplify right side
    410,726.80x = 107,232,216,693.36
  5. Step 5: Solve for x
    x = 107,232,216,693.36/410,726.80
  6. Step 6: Final answer
    x = 261,079.18

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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.