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Finding the Fourth Proportional to 199,574.84, 299,410.10 and 66,456.30

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Solution

The fourth proportional to 199,574.84, 299,410.10 and 66,456.30 is: 99,700.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,574.84 : 299,410.10 = 66,456.30 : x
  2. Step 2: Convert to fraction form
    199,574.84/299,410.10 = 66,456.30/x
  3. Step 3: Cross multiply
    199,574.84x = 299,410.10 × 66,456.30
  4. Step 4: Simplify right side
    199,574.84x = 19,897,687,428.63
  5. Step 5: Solve for x
    x = 19,897,687,428.63/199,574.84
  6. Step 6: Final answer
    x = 99,700.38

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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.