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Finding the Fourth Proportional to 79,392.42, 109,570.26 and 45,404.07

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Solution

The fourth proportional to 79,392.42, 109,570.26 and 45,404.07 is: 62,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,392.42 : 109,570.26 = 45,404.07 : x
  2. Step 2: Convert to fraction form
    79,392.42/109,570.26 = 45,404.07/x
  3. Step 3: Cross multiply
    79,392.42x = 109,570.26 × 45,404.07
  4. Step 4: Simplify right side
    79,392.42x = 4,974,935,754.96
  5. Step 5: Solve for x
    x = 4,974,935,754.96/79,392.42
  6. Step 6: Final answer
    x = 62,662.60

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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.