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Finding the Fourth Proportional to 114,990.66, 172,416.84 and 43,918.02

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Solution

The fourth proportional to 114,990.66, 172,416.84 and 43,918.02 is: 65,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,990.66 : 172,416.84 = 43,918.02 : x
  2. Step 2: Convert to fraction form
    114,990.66/172,416.84 = 43,918.02/x
  3. Step 3: Cross multiply
    114,990.66x = 172,416.84 × 43,918.02
  4. Step 4: Simplify right side
    114,990.66x = 7,572,206,227.46
  5. Step 5: Solve for x
    x = 7,572,206,227.46/114,990.66
  6. Step 6: Final answer
    x = 65,850.62

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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.