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Finding the Fourth Proportional to 216,640.22, 298,957.91 and 119,841.55

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Solution

The fourth proportional to 216,640.22, 298,957.91 and 119,841.55 is: 165,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,640.22 : 298,957.91 = 119,841.55 : x
  2. Step 2: Convert to fraction form
    216,640.22/298,957.91 = 119,841.55/x
  3. Step 3: Cross multiply
    216,640.22x = 298,957.91 × 119,841.55
  4. Step 4: Simplify right side
    216,640.22x = 35,827,579,824.54
  5. Step 5: Solve for x
    x = 35,827,579,824.54/216,640.22
  6. Step 6: Final answer
    x = 165,378.25

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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.