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Finding the Fourth Proportional to 115,873.44, 172,941.43 and 108,306.62

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Solution

The fourth proportional to 115,873.44, 172,941.43 and 108,306.62 is: 161,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,873.44 : 172,941.43 = 108,306.62 : x
  2. Step 2: Convert to fraction form
    115,873.44/172,941.43 = 108,306.62/x
  3. Step 3: Cross multiply
    115,873.44x = 172,941.43 × 108,306.62
  4. Step 4: Simplify right side
    115,873.44x = 18,730,701,457.40
  5. Step 5: Solve for x
    x = 18,730,701,457.40/115,873.44
  6. Step 6: Final answer
    x = 161,647.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.