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Finding the Fourth Proportional to 108,836.70, 163,053.45 and 61,950.30

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Solution

The fourth proportional to 108,836.70, 163,053.45 and 61,950.30 is: 92,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,836.70 : 163,053.45 = 61,950.30 : x
  2. Step 2: Convert to fraction form
    108,836.70/163,053.45 = 61,950.30/x
  3. Step 3: Cross multiply
    108,836.70x = 163,053.45 × 61,950.30
  4. Step 4: Simplify right side
    108,836.70x = 10,101,210,143.54
  5. Step 5: Solve for x
    x = 10,101,210,143.54/108,836.70
  6. Step 6: Final answer
    x = 92,810.70

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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.