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Finding the Fourth Proportional to 116,758.25, 161,126.57 and 66,457.25

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Solution

The fourth proportional to 116,758.25, 161,126.57 and 66,457.25 is: 91,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,758.25 : 161,126.57 = 66,457.25 : x
  2. Step 2: Convert to fraction form
    116,758.25/161,126.57 = 66,457.25/x
  3. Step 3: Cross multiply
    116,758.25x = 161,126.57 × 66,457.25
  4. Step 4: Simplify right side
    116,758.25x = 10,708,028,744.13
  5. Step 5: Solve for x
    x = 10,708,028,744.13/116,758.25
  6. Step 6: Final answer
    x = 91,711.11

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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.