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Finding the Fourth Proportional to 79,547.53, 109,776.00 and 43,739.85

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Solution

The fourth proportional to 79,547.53, 109,776.00 and 43,739.85 is: 60,361.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,547.53 : 109,776.00 = 43,739.85 : x
  2. Step 2: Convert to fraction form
    79,547.53/109,776.00 = 43,739.85/x
  3. Step 3: Cross multiply
    79,547.53x = 109,776.00 × 43,739.85
  4. Step 4: Simplify right side
    79,547.53x = 4,801,585,731.79
  5. Step 5: Solve for x
    x = 4,801,585,731.79/79,547.53
  6. Step 6: Final answer
    x = 60,361.22

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Why These Related Problems?

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