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Finding the Fourth Proportional to 453,644.61, 680,466 and 134,020.92

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Solution

The fourth proportional to 453,644.61, 680,466 and 134,020.92 is: 201,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,644.61 : 680,466 = 134,020.92 : x
  2. Step 2: Convert to fraction form
    453,644.61/680,466 = 134,020.92/x
  3. Step 3: Cross multiply
    453,644.61x = 680,466 × 134,020.92
  4. Step 4: Simplify right side
    453,644.61x = 91,196,679,348.72
  5. Step 5: Solve for x
    x = 91,196,679,348.72/453,644.61
  6. Step 6: Final answer
    x = 201,031.11

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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.