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Finding the Fourth Proportional to 613,582.33, 920,512.92 and 187,156.30

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Solution

The fourth proportional to 613,582.33, 920,512.92 and 187,156.30 is: 280,776.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,582.33 : 920,512.92 = 187,156.30 : x
  2. Step 2: Convert to fraction form
    613,582.33/920,512.92 = 187,156.30/x
  3. Step 3: Cross multiply
    613,582.33x = 920,512.92 × 187,156.30
  4. Step 4: Simplify right side
    613,582.33x = 172,279,792,209.40
  5. Step 5: Solve for x
    x = 172,279,792,209.40/613,582.33
  6. Step 6: Final answer
    x = 280,776.98

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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.