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Finding the Fourth Proportional to 540,877.50, 811,143.72 and 185,805.90

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Solution

The fourth proportional to 540,877.50, 811,143.72 and 185,805.90 is: 278,649.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,877.50 : 811,143.72 = 185,805.90 : x
  2. Step 2: Convert to fraction form
    540,877.50/811,143.72 = 185,805.90/x
  3. Step 3: Cross multiply
    540,877.50x = 811,143.72 × 185,805.90
  4. Step 4: Simplify right side
    540,877.50x = 150,715,288,923.95
  5. Step 5: Solve for x
    x = 150,715,288,923.95/540,877.50
  6. Step 6: Final answer
    x = 278,649.58

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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.