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Finding the Fourth Proportional to 517,043.54, 775,575.03 and 162,049.70

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Solution

The fourth proportional to 517,043.54, 775,575.03 and 162,049.70 is: 243,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,043.54 : 775,575.03 = 162,049.70 : x
  2. Step 2: Convert to fraction form
    517,043.54/775,575.03 = 162,049.70/x
  3. Step 3: Cross multiply
    517,043.54x = 775,575.03 × 162,049.70
  4. Step 4: Simplify right side
    517,043.54x = 125,681,700,938.99
  5. Step 5: Solve for x
    x = 125,681,700,938.99/517,043.54
  6. Step 6: Final answer
    x = 243,077.60

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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.