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Finding the Fourth Proportional to 119,486.75, 164,886.44 and 65,775.24

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Solution

The fourth proportional to 119,486.75, 164,886.44 and 65,775.24 is: 90,766.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,486.75 : 164,886.44 = 65,775.24 : x
  2. Step 2: Convert to fraction form
    119,486.75/164,886.44 = 65,775.24/x
  3. Step 3: Cross multiply
    119,486.75x = 164,886.44 × 65,775.24
  4. Step 4: Simplify right side
    119,486.75x = 10,845,444,834.87
  5. Step 5: Solve for x
    x = 10,845,444,834.87/119,486.75
  6. Step 6: Final answer
    x = 90,766.93

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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.