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Finding the Fourth Proportional to 234,970.02, 352,339.26 and 85,187.82

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Solution

The fourth proportional to 234,970.02, 352,339.26 and 85,187.82 is: 127,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,970.02 : 352,339.26 = 85,187.82 : x
  2. Step 2: Convert to fraction form
    234,970.02/352,339.26 = 85,187.82/x
  3. Step 3: Cross multiply
    234,970.02x = 352,339.26 × 85,187.82
  4. Step 4: Simplify right side
    234,970.02x = 30,015,013,459.81
  5. Step 5: Solve for x
    x = 30,015,013,459.81/234,970.02
  6. Step 6: Final answer
    x = 127,739.76

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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.