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Finding the Fourth Proportional to 79,673.01, 109,955.16 and 45,684.66

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Solution

The fourth proportional to 79,673.01, 109,955.16 and 45,684.66 is: 63,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,673.01 : 109,955.16 = 45,684.66 : x
  2. Step 2: Convert to fraction form
    79,673.01/109,955.16 = 45,684.66/x
  3. Step 3: Cross multiply
    79,673.01x = 109,955.16 × 45,684.66
  4. Step 4: Simplify right side
    79,673.01x = 5,023,264,099.85
  5. Step 5: Solve for x
    x = 5,023,264,099.85/79,673.01
  6. Step 6: Final answer
    x = 63,048.50

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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.