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Finding the Fourth Proportional to 79,597.89, 109,841.63 and 43,785.63

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Solution

The fourth proportional to 79,597.89, 109,841.63 and 43,785.63 is: 60,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,597.89 : 109,841.63 = 43,785.63 : x
  2. Step 2: Convert to fraction form
    79,597.89/109,841.63 = 43,785.63/x
  3. Step 3: Cross multiply
    79,597.89x = 109,841.63 × 43,785.63
  4. Step 4: Simplify right side
    79,597.89x = 4,809,484,750.85
  5. Step 5: Solve for x
    x = 4,809,484,750.85/79,597.89
  6. Step 6: Final answer
    x = 60,422.26

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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.