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Finding the Fourth Proportional to 79,202.86, 109,302.96 and 45,216.88

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Solution

The fourth proportional to 79,202.86, 109,302.96 and 45,216.88 is: 62,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,202.86 : 109,302.96 = 45,216.88 : x
  2. Step 2: Convert to fraction form
    79,202.86/109,302.96 = 45,216.88/x
  3. Step 3: Cross multiply
    79,202.86x = 109,302.96 × 45,216.88
  4. Step 4: Simplify right side
    79,202.86x = 4,942,338,825.96
  5. Step 5: Solve for x
    x = 4,942,338,825.96/79,202.86
  6. Step 6: Final answer
    x = 62,401.01

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1.5x scale

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.