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Finding the Fourth Proportional to 248,713.40, 372,851.40 and 148,913.30

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Solution

The fourth proportional to 248,713.40, 372,851.40 and 148,913.30 is: 223,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,713.40 : 372,851.40 = 148,913.30 : x
  2. Step 2: Convert to fraction form
    248,713.40/372,851.40 = 148,913.30/x
  3. Step 3: Cross multiply
    248,713.40x = 372,851.40 × 148,913.30
  4. Step 4: Simplify right side
    248,713.40x = 55,522,532,383.62
  5. Step 5: Solve for x
    x = 55,522,532,383.62/248,713.40
  6. Step 6: Final answer
    x = 223,239.01

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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.