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Finding the Fourth Proportional to 524,885.04, 787,345.20 and 169,902

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Solution

The fourth proportional to 524,885.04, 787,345.20 and 169,902 is: 254,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,885.04 : 787,345.20 = 169,902 : x
  2. Step 2: Convert to fraction form
    524,885.04/787,345.20 = 169,902/x
  3. Step 3: Cross multiply
    524,885.04x = 787,345.20 × 169,902
  4. Step 4: Simplify right side
    524,885.04x = 133,771,524,170.40
  5. Step 5: Solve for x
    x = 133,771,524,170.40/524,885.04
  6. Step 6: Final answer
    x = 254,858.71

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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.