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Finding the Fourth Proportional to 108,799.50, 150,158.22 and 61,055.66

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Solution

The fourth proportional to 108,799.50, 150,158.22 and 61,055.66 is: 84,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,799.50 : 150,158.22 = 61,055.66 : x
  2. Step 2: Convert to fraction form
    108,799.50/150,158.22 = 61,055.66/x
  3. Step 3: Cross multiply
    108,799.50x = 150,158.22 × 61,055.66
  4. Step 4: Simplify right side
    108,799.50x = 9,168,009,226.53
  5. Step 5: Solve for x
    x = 9,168,009,226.53/108,799.50
  6. Step 6: Final answer
    x = 84,265.18

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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.