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Finding the Fourth Proportional to 248,882.64, 343,445.64 and 141,438.48

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Solution

The fourth proportional to 248,882.64, 343,445.64 and 141,438.48 is: 195,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,882.64 : 343,445.64 = 141,438.48 : x
  2. Step 2: Convert to fraction form
    248,882.64/343,445.64 = 141,438.48/x
  3. Step 3: Cross multiply
    248,882.64x = 343,445.64 × 141,438.48
  4. Step 4: Simplify right side
    248,882.64x = 48,576,429,284.23
  5. Step 5: Solve for x
    x = 48,576,429,284.23/248,882.64
  6. Step 6: Final answer
    x = 195,178.05

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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.