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Finding the Fourth Proportional to 79,798.51, 110,129.70 and 59,620.36

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Solution

The fourth proportional to 79,798.51, 110,129.70 and 59,620.36 is: 82,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.51 : 110,129.70 = 59,620.36 : x
  2. Step 2: Convert to fraction form
    79,798.51/110,129.70 = 59,620.36/x
  3. Step 3: Cross multiply
    79,798.51x = 110,129.70 × 59,620.36
  4. Step 4: Simplify right side
    79,798.51x = 6,565,972,062.59
  5. Step 5: Solve for x
    x = 6,565,972,062.59/79,798.51
  6. Step 6: Final answer
    x = 82,281.89

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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.