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Finding the Fourth Proportional to 118,797.44, 178,312.80 and 89,287.52

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Solution

The fourth proportional to 118,797.44, 178,312.80 and 89,287.52 is: 134,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,797.44 : 178,312.80 = 89,287.52 : x
  2. Step 2: Convert to fraction form
    118,797.44/178,312.80 = 89,287.52/x
  3. Step 3: Cross multiply
    118,797.44x = 178,312.80 × 89,287.52
  4. Step 4: Simplify right side
    118,797.44x = 15,921,107,696.26
  5. Step 5: Solve for x
    x = 15,921,107,696.26/118,797.44
  6. Step 6: Final answer
    x = 134,018.95

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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.