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Finding the Fourth Proportional to 4,160.52, 6,239.70 and 1,238.16

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Solution

The fourth proportional to 4,160.52, 6,239.70 and 1,238.16 is: 1,856.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.52 : 6,239.70 = 1,238.16 : x
  2. Step 2: Convert to fraction form
    4,160.52/6,239.70 = 1,238.16/x
  3. Step 3: Cross multiply
    4,160.52x = 6,239.70 × 1,238.16
  4. Step 4: Simplify right side
    4,160.52x = 7,725,746.95
  5. Step 5: Solve for x
    x = 7,725,746.95/4,160.52
  6. Step 6: Final answer
    x = 1,856.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.