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Finding the Fourth Proportional to 518,140.52, 777,238.52 and 163,182.18

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Solution

The fourth proportional to 518,140.52, 777,238.52 and 163,182.18 is: 244,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,140.52 : 777,238.52 = 163,182.18 : x
  2. Step 2: Convert to fraction form
    518,140.52/777,238.52 = 163,182.18/x
  3. Step 3: Cross multiply
    518,140.52x = 777,238.52 × 163,182.18
  4. Step 4: Simplify right side
    518,140.52x = 126,831,476,073.57
  5. Step 5: Solve for x
    x = 126,831,476,073.57/518,140.52
  6. Step 6: Final answer
    x = 244,782.01

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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.