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Finding the Fourth Proportional to 192,216.10, 288,374.55 and 73,891.30

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Solution

The fourth proportional to 192,216.10, 288,374.55 and 73,891.30 is: 110,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,216.10 : 288,374.55 = 73,891.30 : x
  2. Step 2: Convert to fraction form
    192,216.10/288,374.55 = 73,891.30/x
  3. Step 3: Cross multiply
    192,216.10x = 288,374.55 × 73,891.30
  4. Step 4: Simplify right side
    192,216.10x = 21,308,370,386.42
  5. Step 5: Solve for x
    x = 21,308,370,386.42/192,216.10
  6. Step 6: Final answer
    x = 110,856.32

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1.5x scale

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.