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Finding the Fourth Proportional to 216,490.90, 298,755.48 and 119,701.46

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Solution

The fourth proportional to 216,490.90, 298,755.48 and 119,701.46 is: 165,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,490.90 : 298,755.48 = 119,701.46 : x
  2. Step 2: Convert to fraction form
    216,490.90/298,755.48 = 119,701.46/x
  3. Step 3: Cross multiply
    216,490.90x = 298,755.48 × 119,701.46
  4. Step 4: Simplify right side
    216,490.90x = 35,761,466,232.74
  5. Step 5: Solve for x
    x = 35,761,466,232.74/216,490.90
  6. Step 6: Final answer
    x = 165,186.92

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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.