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Finding the Fourth Proportional to 360,576.90, 540,913.95 and 123,992.10

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Solution

The fourth proportional to 360,576.90, 540,913.95 and 123,992.10 is: 186,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,576.90 : 540,913.95 = 123,992.10 : x
  2. Step 2: Convert to fraction form
    360,576.90/540,913.95 = 123,992.10/x
  3. Step 3: Cross multiply
    360,576.90x = 540,913.95 × 123,992.10
  4. Step 4: Simplify right side
    360,576.90x = 67,069,056,579.80
  5. Step 5: Solve for x
    x = 67,069,056,579.80/360,576.90
  6. Step 6: Final answer
    x = 186,004.86

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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.