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Finding the Fourth Proportional to 100,654.35, 150,981.53 and 65,662.35

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Solution

The fourth proportional to 100,654.35, 150,981.53 and 65,662.35 is: 98,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,654.35 : 150,981.53 = 65,662.35 : x
  2. Step 2: Convert to fraction form
    100,654.35/150,981.53 = 65,662.35/x
  3. Step 3: Cross multiply
    100,654.35x = 150,981.53 × 65,662.35
  4. Step 4: Simplify right side
    100,654.35x = 9,913,801,738.08
  5. Step 5: Solve for x
    x = 9,913,801,738.08/100,654.35
  6. Step 6: Final answer
    x = 98,493.53

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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.