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Finding the Fourth Proportional to 79,356.71, 109,512.20 and 45,365.95

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Solution

The fourth proportional to 79,356.71, 109,512.20 and 45,365.95 is: 62,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,356.71 : 109,512.20 = 45,365.95 : x
  2. Step 2: Convert to fraction form
    79,356.71/109,512.20 = 45,365.95/x
  3. Step 3: Cross multiply
    79,356.71x = 109,512.20 × 45,365.95
  4. Step 4: Simplify right side
    79,356.71x = 4,968,124,442.03
  5. Step 5: Solve for x
    x = 4,968,124,442.03/79,356.71
  6. Step 6: Final answer
    x = 62,604.97

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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.