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Finding the Fourth Proportional to 275,521.99, 412,888.30 and 156,948.49

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Solution

The fourth proportional to 275,521.99, 412,888.30 and 156,948.49 is: 235,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,521.99 : 412,888.30 = 156,948.49 : x
  2. Step 2: Convert to fraction form
    275,521.99/412,888.30 = 156,948.49/x
  3. Step 3: Cross multiply
    275,521.99x = 412,888.30 × 156,948.49
  4. Step 4: Simplify right side
    275,521.99x = 64,802,195,223.67
  5. Step 5: Solve for x
    x = 64,802,195,223.67/275,521.99
  6. Step 6: Final answer
    x = 235,197.91

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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.