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Finding the Fourth Proportional to 79,390.00, 109,557.77 and 43,580.62

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Solution

The fourth proportional to 79,390.00, 109,557.77 and 43,580.62 is: 60,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,390.00 : 109,557.77 = 43,580.62 : x
  2. Step 2: Convert to fraction form
    79,390.00/109,557.77 = 43,580.62/x
  3. Step 3: Cross multiply
    79,390.00x = 109,557.77 × 43,580.62
  4. Step 4: Simplify right side
    79,390.00x = 4,774,596,116.69
  5. Step 5: Solve for x
    x = 4,774,596,116.69/79,390.00
  6. Step 6: Final answer
    x = 60,141.02

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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.