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Finding the Fourth Proportional to 144,490.50, 199,396.89 and 94,189.50

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Solution

The fourth proportional to 144,490.50, 199,396.89 and 94,189.50 is: 129,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,490.50 : 199,396.89 = 94,189.50 : x
  2. Step 2: Convert to fraction form
    144,490.50/199,396.89 = 94,189.50/x
  3. Step 3: Cross multiply
    144,490.50x = 199,396.89 × 94,189.50
  4. Step 4: Simplify right side
    144,490.50x = 18,781,093,370.66
  5. Step 5: Solve for x
    x = 18,781,093,370.66/144,490.50
  6. Step 6: Final answer
    x = 129,981.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.