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Finding the Fourth Proportional to 248,614.30, 372,921.45 and 82,402.30

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Solution

The fourth proportional to 248,614.30, 372,921.45 and 82,402.30 is: 123,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,614.30 : 372,921.45 = 82,402.30 : x
  2. Step 2: Convert to fraction form
    248,614.30/372,921.45 = 82,402.30/x
  3. Step 3: Cross multiply
    248,614.30x = 372,921.45 × 82,402.30
  4. Step 4: Simplify right side
    248,614.30x = 30,729,585,199.34
  5. Step 5: Solve for x
    x = 30,729,585,199.34/248,614.30
  6. Step 6: Final answer
    x = 123,603.45

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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.