Home / 217,528.20-326,307.78-91,041.03

Finding the Fourth Proportional to 217,528.20, 326,307.78 and 91,041.03

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Solution

The fourth proportional to 217,528.20, 326,307.78 and 91,041.03 is: 136,568.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,528.20 : 326,307.78 = 91,041.03 : x
  2. Step 2: Convert to fraction form
    217,528.20/326,307.78 = 91,041.03/x
  3. Step 3: Cross multiply
    217,528.20x = 326,307.78 × 91,041.03
  4. Step 4: Simplify right side
    217,528.20x = 29,707,396,388.21
  5. Step 5: Solve for x
    x = 29,707,396,388.21/217,528.20
  6. Step 6: Final answer
    x = 136,568.02

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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.