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Finding the Fourth Proportional to 167,802.40, 251,444.40 and 145,511.20

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Solution

The fourth proportional to 167,802.40, 251,444.40 and 145,511.20 is: 218,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,802.40 : 251,444.40 = 145,511.20 : x
  2. Step 2: Convert to fraction form
    167,802.40/251,444.40 = 145,511.20/x
  3. Step 3: Cross multiply
    167,802.40x = 251,444.40 × 145,511.20
  4. Step 4: Simplify right side
    167,802.40x = 36,587,976,377.28
  5. Step 5: Solve for x
    x = 36,587,976,377.28/167,802.40
  6. Step 6: Final answer
    x = 218,042.03

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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.