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Finding the Fourth Proportional to 318,884.83, 440,061.01 and 175,644.87

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Solution

The fourth proportional to 318,884.83, 440,061.01 and 175,644.87 is: 242,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,884.83 : 440,061.01 = 175,644.87 : x
  2. Step 2: Convert to fraction form
    318,884.83/440,061.01 = 175,644.87/x
  3. Step 3: Cross multiply
    318,884.83x = 440,061.01 × 175,644.87
  4. Step 4: Simplify right side
    318,884.83x = 77,294,458,893.52
  5. Step 5: Solve for x
    x = 77,294,458,893.52/318,884.83
  6. Step 6: Final answer
    x = 242,389.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.