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Finding the Fourth Proportional to 217,355.64, 326,034.59 and 98,944.17

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Solution

The fourth proportional to 217,355.64, 326,034.59 and 98,944.17 is: 148,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,355.64 : 326,034.59 = 98,944.17 : x
  2. Step 2: Convert to fraction form
    217,355.64/326,034.59 = 98,944.17/x
  3. Step 3: Cross multiply
    217,355.64x = 326,034.59 × 98,944.17
  4. Step 4: Simplify right side
    217,355.64x = 32,259,221,404.12
  5. Step 5: Solve for x
    x = 32,259,221,404.12/217,355.64
  6. Step 6: Final answer
    x = 148,416.77

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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.