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Finding the Fourth Proportional to 297,862.61, 411,053.13 and 161,896.86

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Solution

The fourth proportional to 297,862.61, 411,053.13 and 161,896.86 is: 223,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,862.61 : 411,053.13 = 161,896.86 : x
  2. Step 2: Convert to fraction form
    297,862.61/411,053.13 = 161,896.86/x
  3. Step 3: Cross multiply
    297,862.61x = 411,053.13 × 161,896.86
  4. Step 4: Simplify right side
    297,862.61x = 66,548,211,040.17
  5. Step 5: Solve for x
    x = 66,548,211,040.17/297,862.61
  6. Step 6: Final answer
    x = 223,419.15

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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.