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Finding the Fourth Proportional to 403,348.08, 605,113.16 and 133,475.52

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Solution

The fourth proportional to 403,348.08, 605,113.16 and 133,475.52 is: 200,243.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,348.08 : 605,113.16 = 133,475.52 : x
  2. Step 2: Convert to fraction form
    403,348.08/605,113.16 = 133,475.52/x
  3. Step 3: Cross multiply
    403,348.08x = 605,113.16 × 133,475.52
  4. Step 4: Simplify right side
    403,348.08x = 80,767,793,689.84
  5. Step 5: Solve for x
    x = 80,767,793,689.84/403,348.08
  6. Step 6: Final answer
    x = 200,243.41

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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.