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Finding the Fourth Proportional to 299,122.80, 412,798.68 and 171,823.92

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Solution

The fourth proportional to 299,122.80, 412,798.68 and 171,823.92 is: 237,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,122.80 : 412,798.68 = 171,823.92 : x
  2. Step 2: Convert to fraction form
    299,122.80/412,798.68 = 171,823.92/x
  3. Step 3: Cross multiply
    299,122.80x = 412,798.68 × 171,823.92
  4. Step 4: Simplify right side
    299,122.80x = 70,928,687,368.43
  5. Step 5: Solve for x
    x = 70,928,687,368.43/299,122.80
  6. Step 6: Final answer
    x = 237,122.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.