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Finding the Fourth Proportional to 157,086.56, 216,763.04 and 89,081.80

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Solution

The fourth proportional to 157,086.56, 216,763.04 and 89,081.80 is: 122,923.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,086.56 : 216,763.04 = 89,081.80 : x
  2. Step 2: Convert to fraction form
    157,086.56/216,763.04 = 89,081.80/x
  3. Step 3: Cross multiply
    157,086.56x = 216,763.04 × 89,081.80
  4. Step 4: Simplify right side
    157,086.56x = 19,309,641,457.47
  5. Step 5: Solve for x
    x = 19,309,641,457.47/157,086.56
  6. Step 6: Final answer
    x = 122,923.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.