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Finding the Fourth Proportional to 201,640.60, 278,247.54 and 116,763.16

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Solution

The fourth proportional to 201,640.60, 278,247.54 and 116,763.16 is: 161,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,640.60 : 278,247.54 = 116,763.16 : x
  2. Step 2: Convert to fraction form
    201,640.60/278,247.54 = 116,763.16/x
  3. Step 3: Cross multiply
    201,640.60x = 278,247.54 × 116,763.16
  4. Step 4: Simplify right side
    201,640.60x = 32,489,062,032.63
  5. Step 5: Solve for x
    x = 32,489,062,032.63/201,640.60
  6. Step 6: Final answer
    x = 161,123.61

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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.