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Finding the Fourth Proportional to 199,662.52, 275,532.16 and 109,018.20

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Solution

The fourth proportional to 199,662.52, 275,532.16 and 109,018.20 is: 150,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,662.52 : 275,532.16 = 109,018.20 : x
  2. Step 2: Convert to fraction form
    199,662.52/275,532.16 = 109,018.20/x
  3. Step 3: Cross multiply
    199,662.52x = 275,532.16 × 109,018.20
  4. Step 4: Simplify right side
    199,662.52x = 30,038,020,125.31
  5. Step 5: Solve for x
    x = 30,038,020,125.31/199,662.52
  6. Step 6: Final answer
    x = 150,443.96

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1.5x scale

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.