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Finding the Fourth Proportional to 317,052.77, 437,538.45 and 171,863.30

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Solution

The fourth proportional to 317,052.77, 437,538.45 and 171,863.30 is: 237,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,052.77 : 437,538.45 = 171,863.30 : x
  2. Step 2: Convert to fraction form
    317,052.77/437,538.45 = 171,863.30/x
  3. Step 3: Cross multiply
    317,052.77x = 437,538.45 × 171,863.30
  4. Step 4: Simplify right side
    317,052.77x = 75,196,799,706.19
  5. Step 5: Solve for x
    x = 75,196,799,706.19/317,052.77
  6. Step 6: Final answer
    x = 237,174.40

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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.