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Finding the Fourth Proportional to 239,671.14, 330,866.00 and 149,056.30

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Solution

The fourth proportional to 239,671.14, 330,866.00 and 149,056.30 is: 205,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,671.14 : 330,866.00 = 149,056.30 : x
  2. Step 2: Convert to fraction form
    239,671.14/330,866.00 = 149,056.30/x
  3. Step 3: Cross multiply
    239,671.14x = 330,866.00 × 149,056.30
  4. Step 4: Simplify right side
    239,671.14x = 49,317,661,983.06
  5. Step 5: Solve for x
    x = 49,317,661,983.06/239,671.14
  6. Step 6: Final answer
    x = 205,772.22

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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.