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Finding the Fourth Proportional to 114,805.79, 172,210.43 and 43,732.37

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Solution

The fourth proportional to 114,805.79, 172,210.43 and 43,732.37 is: 65,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,805.79 : 172,210.43 = 43,732.37 : x
  2. Step 2: Convert to fraction form
    114,805.79/172,210.43 = 43,732.37/x
  3. Step 3: Cross multiply
    114,805.79x = 172,210.43 × 43,732.37
  4. Step 4: Simplify right side
    114,805.79x = 7,531,169,381.57
  5. Step 5: Solve for x
    x = 7,531,169,381.57/114,805.79
  6. Step 6: Final answer
    x = 65,599.22

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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.