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Finding the Fourth Proportional to 109,247.80, 163,871.70 and 94,214.20

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Solution

The fourth proportional to 109,247.80, 163,871.70 and 94,214.20 is: 141,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,247.80 : 163,871.70 = 94,214.20 : x
  2. Step 2: Convert to fraction form
    109,247.80/163,871.70 = 94,214.20/x
  3. Step 3: Cross multiply
    109,247.80x = 163,871.70 × 94,214.20
  4. Step 4: Simplify right side
    109,247.80x = 15,439,041,118.14
  5. Step 5: Solve for x
    x = 15,439,041,118.14/109,247.80
  6. Step 6: Final answer
    x = 141,321.30

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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.