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Finding the Fourth Proportional to 162,802.30, 244,203.45 and 74,228.80

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Solution

The fourth proportional to 162,802.30, 244,203.45 and 74,228.80 is: 111,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,802.30 : 244,203.45 = 74,228.80 : x
  2. Step 2: Convert to fraction form
    162,802.30/244,203.45 = 74,228.80/x
  3. Step 3: Cross multiply
    162,802.30x = 244,203.45 × 74,228.80
  4. Step 4: Simplify right side
    162,802.30x = 18,126,929,049.36
  5. Step 5: Solve for x
    x = 18,126,929,049.36/162,802.30
  6. Step 6: Final answer
    x = 111,343.20

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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.