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Finding the Fourth Proportional to 524,585.20, 787,072.20 and 169,610.80

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Solution

The fourth proportional to 524,585.20, 787,072.20 and 169,610.80 is: 254,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,585.20 : 787,072.20 = 169,610.80 : x
  2. Step 2: Convert to fraction form
    524,585.20/787,072.20 = 169,610.80/x
  3. Step 3: Cross multiply
    524,585.20x = 787,072.20 × 169,610.80
  4. Step 4: Simplify right side
    524,585.20x = 133,495,945,499.76
  5. Step 5: Solve for x
    x = 133,495,945,499.76/524,585.20
  6. Step 6: Final answer
    x = 254,479.05

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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.