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Finding the Fourth Proportional to 451,206.80, 676,810.20 and 151,587.80

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Solution

The fourth proportional to 451,206.80, 676,810.20 and 151,587.80 is: 227,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,206.80 : 676,810.20 = 151,587.80 : x
  2. Step 2: Convert to fraction form
    451,206.80/676,810.20 = 151,587.80/x
  3. Step 3: Cross multiply
    451,206.80x = 676,810.20 × 151,587.80
  4. Step 4: Simplify right side
    451,206.80x = 102,596,169,235.56
  5. Step 5: Solve for x
    x = 102,596,169,235.56/451,206.80
  6. Step 6: Final answer
    x = 227,381.70

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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.