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Finding the Fourth Proportional to 199,589.40, 299,384.10 and 147,101.40

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Solution

The fourth proportional to 199,589.40, 299,384.10 and 147,101.40 is: 220,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,589.40 : 299,384.10 = 147,101.40 : x
  2. Step 2: Convert to fraction form
    199,589.40/299,384.10 = 147,101.40/x
  3. Step 3: Cross multiply
    199,589.40x = 299,384.10 × 147,101.40
  4. Step 4: Simplify right side
    199,589.40x = 44,039,820,247.74
  5. Step 5: Solve for x
    x = 44,039,820,247.74/199,589.40
  6. Step 6: Final answer
    x = 220,652.10

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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.