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Finding the Fourth Proportional to 248,359.84, 342,727.08 and 140,923.48

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Solution

The fourth proportional to 248,359.84, 342,727.08 and 140,923.48 is: 194,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,359.84 : 342,727.08 = 140,923.48 : x
  2. Step 2: Convert to fraction form
    248,359.84/342,727.08 = 140,923.48/x
  3. Step 3: Cross multiply
    248,359.84x = 342,727.08 × 140,923.48
  4. Step 4: Simplify right side
    248,359.84x = 48,298,292,803.84
  5. Step 5: Solve for x
    x = 48,298,292,803.84/248,359.84
  6. Step 6: Final answer
    x = 194,469.01

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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.