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Finding the Fourth Proportional to 175,047.80, 262,110.90 and 128,046.20

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Solution

The fourth proportional to 175,047.80, 262,110.90 and 128,046.20 is: 191,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,047.80 : 262,110.90 = 128,046.20 : x
  2. Step 2: Convert to fraction form
    175,047.80/262,110.90 = 128,046.20/x
  3. Step 3: Cross multiply
    175,047.80x = 262,110.90 × 128,046.20
  4. Step 4: Simplify right side
    175,047.80x = 33,562,304,723.58
  5. Step 5: Solve for x
    x = 33,562,304,723.58/175,047.80
  6. Step 6: Final answer
    x = 191,732.23

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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.