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Finding the Fourth Proportional to 101,166.90, 151,923.15 and 66,261.30

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Solution

The fourth proportional to 101,166.90, 151,923.15 and 66,261.30 is: 99,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,166.90 : 151,923.15 = 66,261.30 : x
  2. Step 2: Convert to fraction form
    101,166.90/151,923.15 = 66,261.30/x
  3. Step 3: Cross multiply
    101,166.90x = 151,923.15 × 66,261.30
  4. Step 4: Simplify right side
    101,166.90x = 10,066,625,419.10
  5. Step 5: Solve for x
    x = 10,066,625,419.10/101,166.90
  6. Step 6: Final answer
    x = 99,505.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.