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Finding the Fourth Proportional to 108,837.20, 163,054.20 and 61,950.80

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Solution

The fourth proportional to 108,837.20, 163,054.20 and 61,950.80 is: 92,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,837.20 : 163,054.20 = 61,950.80 : x
  2. Step 2: Convert to fraction form
    108,837.20/163,054.20 = 61,950.80/x
  3. Step 3: Cross multiply
    108,837.20x = 163,054.20 × 61,950.80
  4. Step 4: Simplify right side
    108,837.20x = 10,101,338,133.36
  5. Step 5: Solve for x
    x = 10,101,338,133.36/108,837.20
  6. Step 6: Final answer
    x = 92,811.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.