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Finding the Fourth Proportional to 199,426.40, 299,139.60 and 73,066.40

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Solution

The fourth proportional to 199,426.40, 299,139.60 and 73,066.40 is: 109,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,426.40 : 299,139.60 = 73,066.40 : x
  2. Step 2: Convert to fraction form
    199,426.40/299,139.60 = 73,066.40/x
  3. Step 3: Cross multiply
    199,426.40x = 299,139.60 × 73,066.40
  4. Step 4: Simplify right side
    199,426.40x = 21,857,053,669.44
  5. Step 5: Solve for x
    x = 21,857,053,669.44/199,426.40
  6. Step 6: Final answer
    x = 109,599.60

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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.