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Finding the Fourth Proportional to 137,991.96, 207,009.54 and 44,507.16

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Solution

The fourth proportional to 137,991.96, 207,009.54 and 44,507.16 is: 66,767.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,991.96 : 207,009.54 = 44,507.16 : x
  2. Step 2: Convert to fraction form
    137,991.96/207,009.54 = 44,507.16/x
  3. Step 3: Cross multiply
    137,991.96x = 207,009.54 × 44,507.16
  4. Step 4: Simplify right side
    137,991.96x = 9,213,406,718.31
  5. Step 5: Solve for x
    x = 9,213,406,718.31/137,991.96
  6. Step 6: Final answer
    x = 66,767.71

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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.