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Finding the Fourth Proportional to 242,642.40, 363,790.80 and 92,824.80

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Solution

The fourth proportional to 242,642.40, 363,790.80 and 92,824.80 is: 139,171.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,642.40 : 363,790.80 = 92,824.80 : x
  2. Step 2: Convert to fraction form
    242,642.40/363,790.80 = 92,824.80/x
  3. Step 3: Cross multiply
    242,642.40x = 363,790.80 × 92,824.80
  4. Step 4: Simplify right side
    242,642.40x = 33,768,808,251.84
  5. Step 5: Solve for x
    x = 33,768,808,251.84/242,642.40
  6. Step 6: Final answer
    x = 139,171.09

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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.