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Finding the Fourth Proportional to 79,586.55, 109,829.25 and 45,595.17

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Solution

The fourth proportional to 79,586.55, 109,829.25 and 45,595.17 is: 62,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,586.55 : 109,829.25 = 45,595.17 : x
  2. Step 2: Convert to fraction form
    79,586.55/109,829.25 = 45,595.17/x
  3. Step 3: Cross multiply
    79,586.55x = 109,829.25 × 45,595.17
  4. Step 4: Simplify right side
    79,586.55x = 5,007,683,324.72
  5. Step 5: Solve for x
    x = 5,007,683,324.72/79,586.55
  6. Step 6: Final answer
    x = 62,921.23

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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.