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Finding the Fourth Proportional to 79,592.58, 109,840.64 and 43,785.32

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Solution

The fourth proportional to 79,592.58, 109,840.64 and 43,785.32 is: 60,425.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,592.58 : 109,840.64 = 43,785.32 : x
  2. Step 2: Convert to fraction form
    79,592.58/109,840.64 = 43,785.32/x
  3. Step 3: Cross multiply
    79,592.58x = 109,840.64 × 43,785.32
  4. Step 4: Simplify right side
    79,592.58x = 4,809,406,803.28
  5. Step 5: Solve for x
    x = 4,809,406,803.28/79,592.58
  6. Step 6: Final answer
    x = 60,425.32

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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.