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Finding the Fourth Proportional to 110,769.61, 152,860.09 and 63,021.94

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Solution

The fourth proportional to 110,769.61, 152,860.09 and 63,021.94 is: 86,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,769.61 : 152,860.09 = 63,021.94 : x
  2. Step 2: Convert to fraction form
    110,769.61/152,860.09 = 63,021.94/x
  3. Step 3: Cross multiply
    110,769.61x = 152,860.09 × 63,021.94
  4. Step 4: Simplify right side
    110,769.61x = 9,633,539,420.37
  5. Step 5: Solve for x
    x = 9,633,539,420.37/110,769.61
  6. Step 6: Final answer
    x = 86,969.16

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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.