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Finding the Fourth Proportional to 245,062.80, 367,448.40 and 126,964.80

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Solution

The fourth proportional to 245,062.80, 367,448.40 and 126,964.80 is: 190,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,062.80 : 367,448.40 = 126,964.80 : x
  2. Step 2: Convert to fraction form
    245,062.80/367,448.40 = 126,964.80/x
  3. Step 3: Cross multiply
    245,062.80x = 367,448.40 × 126,964.80
  4. Step 4: Simplify right side
    245,062.80x = 46,653,012,616.32
  5. Step 5: Solve for x
    x = 46,653,012,616.32/245,062.80
  6. Step 6: Final answer
    x = 190,371.66

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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.