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Finding the Fourth Proportional to 244,986.01, 338,079.09 and 154,400.47

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Solution

The fourth proportional to 244,986.01, 338,079.09 and 154,400.47 is: 213,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,986.01 : 338,079.09 = 154,400.47 : x
  2. Step 2: Convert to fraction form
    244,986.01/338,079.09 = 154,400.47/x
  3. Step 3: Cross multiply
    244,986.01x = 338,079.09 × 154,400.47
  4. Step 4: Simplify right side
    244,986.01x = 52,199,570,393.17
  5. Step 5: Solve for x
    x = 52,199,570,393.17/244,986.01
  6. Step 6: Final answer
    x = 213,071.64

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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.