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Finding the Fourth Proportional to 79,587.79, 109,846.74 and 45,619.04

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Solution

The fourth proportional to 79,587.79, 109,846.74 and 45,619.04 is: 62,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,587.79 : 109,846.74 = 45,619.04 : x
  2. Step 2: Convert to fraction form
    79,587.79/109,846.74 = 45,619.04/x
  3. Step 3: Cross multiply
    79,587.79x = 109,846.74 × 45,619.04
  4. Step 4: Simplify right side
    79,587.79x = 5,011,102,825.93
  5. Step 5: Solve for x
    x = 5,011,102,825.93/79,587.79
  6. Step 6: Final answer
    x = 62,963.21

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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.