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Finding the Fourth Proportional to 202,252.72, 279,164.28 and 117,397.12

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Solution

The fourth proportional to 202,252.72, 279,164.28 and 117,397.12 is: 162,040.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,252.72 : 279,164.28 = 117,397.12 : x
  2. Step 2: Convert to fraction form
    202,252.72/279,164.28 = 117,397.12/x
  3. Step 3: Cross multiply
    202,252.72x = 279,164.28 × 117,397.12
  4. Step 4: Simplify right side
    202,252.72x = 32,773,082,478.87
  5. Step 5: Solve for x
    x = 32,773,082,478.87/202,252.72
  6. Step 6: Final answer
    x = 162,040.26

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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.