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Finding the Fourth Proportional to 119,486.88, 164,895.48 and 65,773.08

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Solution

The fourth proportional to 119,486.88, 164,895.48 and 65,773.08 is: 90,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,486.88 : 164,895.48 = 65,773.08 : x
  2. Step 2: Convert to fraction form
    119,486.88/164,895.48 = 65,773.08/x
  3. Step 3: Cross multiply
    119,486.88x = 164,895.48 × 65,773.08
  4. Step 4: Simplify right side
    119,486.88x = 10,845,683,597.68
  5. Step 5: Solve for x
    x = 10,845,683,597.68/119,486.88
  6. Step 6: Final answer
    x = 90,768.82

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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.