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Finding the Fourth Proportional to 118,895.28, 178,217.16 and 43,967.28

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Solution

The fourth proportional to 118,895.28, 178,217.16 and 43,967.28 is: 65,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,895.28 : 178,217.16 = 43,967.28 : x
  2. Step 2: Convert to fraction form
    118,895.28/178,217.16 = 43,967.28/x
  3. Step 3: Cross multiply
    118,895.28x = 178,217.16 × 43,967.28
  4. Step 4: Simplify right side
    118,895.28x = 7,835,723,774.52
  5. Step 5: Solve for x
    x = 7,835,723,774.52/118,895.28
  6. Step 6: Final answer
    x = 65,904.41

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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.