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Finding the Fourth Proportional to 161,370.33, 241,892.02 and 81,165.95

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Solution

The fourth proportional to 161,370.33, 241,892.02 and 81,165.95 is: 121,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,370.33 : 241,892.02 = 81,165.95 : x
  2. Step 2: Convert to fraction form
    161,370.33/241,892.02 = 81,165.95/x
  3. Step 3: Cross multiply
    161,370.33x = 241,892.02 × 81,165.95
  4. Step 4: Simplify right side
    161,370.33x = 19,633,395,399.81
  5. Step 5: Solve for x
    x = 19,633,395,399.81/161,370.33
  6. Step 6: Final answer
    x = 121,666.70

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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.