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Finding the Fourth Proportional to 101,945.34, 140,627.90 and 94,728.84

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Solution

The fourth proportional to 101,945.34, 140,627.90 and 94,728.84 is: 130,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,945.34 : 140,627.90 = 94,728.84 : x
  2. Step 2: Convert to fraction form
    101,945.34/140,627.90 = 94,728.84/x
  3. Step 3: Cross multiply
    101,945.34x = 140,627.90 × 94,728.84
  4. Step 4: Simplify right side
    101,945.34x = 13,321,517,838.64
  5. Step 5: Solve for x
    x = 13,321,517,838.64/101,945.34
  6. Step 6: Final answer
    x = 130,673.14

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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.