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Finding the Fourth Proportional to 97,882.80, 146,921.40 and 48,019.20

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Solution

The fourth proportional to 97,882.80, 146,921.40 and 48,019.20 is: 72,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,882.80 : 146,921.40 = 48,019.20 : x
  2. Step 2: Convert to fraction form
    97,882.80/146,921.40 = 48,019.20/x
  3. Step 3: Cross multiply
    97,882.80x = 146,921.40 × 48,019.20
  4. Step 4: Simplify right side
    97,882.80x = 7,055,048,090.88
  5. Step 5: Solve for x
    x = 7,055,048,090.88/97,882.80
  6. Step 6: Final answer
    x = 72,076.48

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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.