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Finding the Fourth Proportional to 137,216.70, 205,492.86 and 94,978.44

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Solution

The fourth proportional to 137,216.70, 205,492.86 and 94,978.44 is: 142,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,216.70 : 205,492.86 = 94,978.44 : x
  2. Step 2: Convert to fraction form
    137,216.70/205,492.86 = 94,978.44/x
  3. Step 3: Cross multiply
    137,216.70x = 205,492.86 × 94,978.44
  4. Step 4: Simplify right side
    137,216.70x = 19,517,391,273.94
  5. Step 5: Solve for x
    x = 19,517,391,273.94/137,216.70
  6. Step 6: Final answer
    x = 142,237.73

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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.