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Finding the Fourth Proportional to 79,762.78, 110,074.95 and 43,955.10

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Solution

The fourth proportional to 79,762.78, 110,074.95 and 43,955.10 is: 60,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,762.78 : 110,074.95 = 43,955.10 : x
  2. Step 2: Convert to fraction form
    79,762.78/110,074.95 = 43,955.10/x
  3. Step 3: Cross multiply
    79,762.78x = 110,074.95 × 43,955.10
  4. Step 4: Simplify right side
    79,762.78x = 4,838,355,434.75
  5. Step 5: Solve for x
    x = 4,838,355,434.75/79,762.78
  6. Step 6: Final answer
    x = 60,659.31

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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.