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Finding the Fourth Proportional to 119,382.63, 164,736.23 and 68,385.57

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Solution

The fourth proportional to 119,382.63, 164,736.23 and 68,385.57 is: 94,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,382.63 : 164,736.23 = 68,385.57 : x
  2. Step 2: Convert to fraction form
    119,382.63/164,736.23 = 68,385.57/x
  3. Step 3: Cross multiply
    119,382.63x = 164,736.23 × 68,385.57
  4. Step 4: Simplify right side
    119,382.63x = 11,265,580,646.27
  5. Step 5: Solve for x
    x = 11,265,580,646.27/119,382.63
  6. Step 6: Final answer
    x = 94,365.32

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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.