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Finding the Fourth Proportional to 524,556.20, 786,641.52 and 187,505.90

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Solution

The fourth proportional to 524,556.20, 786,641.52 and 187,505.90 is: 281,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,556.20 : 786,641.52 = 187,505.90 : x
  2. Step 2: Convert to fraction form
    524,556.20/786,641.52 = 187,505.90/x
  3. Step 3: Cross multiply
    524,556.20x = 786,641.52 × 187,505.90
  4. Step 4: Simplify right side
    524,556.20x = 147,499,926,184.97
  5. Step 5: Solve for x
    x = 147,499,926,184.97/524,556.20
  6. Step 6: Final answer
    x = 281,189.94

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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.