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Finding the Fourth Proportional to 217,263.40, 325,895.10 and 146,404.60

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Solution

The fourth proportional to 217,263.40, 325,895.10 and 146,404.60 is: 219,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,263.40 : 325,895.10 = 146,404.60 : x
  2. Step 2: Convert to fraction form
    217,263.40/325,895.10 = 146,404.60/x
  3. Step 3: Cross multiply
    217,263.40x = 325,895.10 × 146,404.60
  4. Step 4: Simplify right side
    217,263.40x = 47,712,541,757.46
  5. Step 5: Solve for x
    x = 47,712,541,757.46/217,263.40
  6. Step 6: Final answer
    x = 219,606.90

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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.