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Finding the Fourth Proportional to 215,795.40, 323,616.30 and 97,523.40

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Solution

The fourth proportional to 215,795.40, 323,616.30 and 97,523.40 is: 146,250.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,795.40 : 323,616.30 = 97,523.40 : x
  2. Step 2: Convert to fraction form
    215,795.40/323,616.30 = 97,523.40/x
  3. Step 3: Cross multiply
    215,795.40x = 323,616.30 × 97,523.40
  4. Step 4: Simplify right side
    215,795.40x = 31,560,161,871.42
  5. Step 5: Solve for x
    x = 31,560,161,871.42/215,795.40
  6. Step 6: Final answer
    x = 146,250.39

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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.