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Finding the Fourth Proportional to 442,885.30, 664,133.55 and 176,557.30

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Solution

The fourth proportional to 442,885.30, 664,133.55 and 176,557.30 is: 264,758.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,885.30 : 664,133.55 = 176,557.30 : x
  2. Step 2: Convert to fraction form
    442,885.30/664,133.55 = 176,557.30/x
  3. Step 3: Cross multiply
    442,885.30x = 664,133.55 × 176,557.30
  4. Step 4: Simplify right side
    442,885.30x = 117,257,626,427.42
  5. Step 5: Solve for x
    x = 117,257,626,427.42/442,885.30
  6. Step 6: Final answer
    x = 264,758.45

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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.