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Finding the Fourth Proportional to 453,841.78, 680,836.55 and 134,026

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Solution

The fourth proportional to 453,841.78, 680,836.55 and 134,026 is: 201,060.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,841.78 : 680,836.55 = 134,026 : x
  2. Step 2: Convert to fraction form
    453,841.78/680,836.55 = 134,026/x
  3. Step 3: Cross multiply
    453,841.78x = 680,836.55 × 134,026
  4. Step 4: Simplify right side
    453,841.78x = 91,249,799,450.30
  5. Step 5: Solve for x
    x = 91,249,799,450.30/453,841.78
  6. Step 6: Final answer
    x = 201,060.82

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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.