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Finding the Fourth Proportional to 101,618.79, 140,232.03 and 61,334.25

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Solution

The fourth proportional to 101,618.79, 140,232.03 and 61,334.25 is: 84,640.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,618.79 : 140,232.03 = 61,334.25 : x
  2. Step 2: Convert to fraction form
    101,618.79/140,232.03 = 61,334.25/x
  3. Step 3: Cross multiply
    101,618.79x = 140,232.03 × 61,334.25
  4. Step 4: Simplify right side
    101,618.79x = 8,601,026,386.03
  5. Step 5: Solve for x
    x = 8,601,026,386.03/101,618.79
  6. Step 6: Final answer
    x = 84,640.12

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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.