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Finding the Fourth Proportional to 108,490.98, 161,923.08 and 101,405.10

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Solution

The fourth proportional to 108,490.98, 161,923.08 and 101,405.10 is: 151,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,490.98 : 161,923.08 = 101,405.10 : x
  2. Step 2: Convert to fraction form
    108,490.98/161,923.08 = 101,405.10/x
  3. Step 3: Cross multiply
    108,490.98x = 161,923.08 × 101,405.10
  4. Step 4: Simplify right side
    108,490.98x = 16,419,826,119.71
  5. Step 5: Solve for x
    x = 16,419,826,119.71/108,490.98
  6. Step 6: Final answer
    x = 151,347.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.