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Finding the Fourth Proportional to 109,330.80, 163,996.20 and 98,833.20

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Solution

The fourth proportional to 109,330.80, 163,996.20 and 98,833.20 is: 148,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,330.80 : 163,996.20 = 98,833.20 : x
  2. Step 2: Convert to fraction form
    109,330.80/163,996.20 = 98,833.20/x
  3. Step 3: Cross multiply
    109,330.80x = 163,996.20 × 98,833.20
  4. Step 4: Simplify right side
    109,330.80x = 16,208,269,233.84
  5. Step 5: Solve for x
    x = 16,208,269,233.84/109,330.80
  6. Step 6: Final answer
    x = 148,249.80

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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.