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Finding the Fourth Proportional to 437,258.44, 655,931 and 121,715.25

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Solution

The fourth proportional to 437,258.44, 655,931 and 121,715.25 is: 182,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,258.44 : 655,931 = 121,715.25 : x
  2. Step 2: Convert to fraction form
    437,258.44/655,931 = 121,715.25/x
  3. Step 3: Cross multiply
    437,258.44x = 655,931 × 121,715.25
  4. Step 4: Simplify right side
    437,258.44x = 79,836,805,647.75
  5. Step 5: Solve for x
    x = 79,836,805,647.75/437,258.44
  6. Step 6: Final answer
    x = 182,584.94

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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.