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Finding the Fourth Proportional to 119,494.66, 164,904.71 and 68,515.69

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Solution

The fourth proportional to 119,494.66, 164,904.71 and 68,515.69 is: 94,552.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,494.66 : 164,904.71 = 68,515.69 : x
  2. Step 2: Convert to fraction form
    119,494.66/164,904.71 = 68,515.69/x
  3. Step 3: Cross multiply
    119,494.66x = 164,904.71 × 68,515.69
  4. Step 4: Simplify right side
    119,494.66x = 11,298,559,989.90
  5. Step 5: Solve for x
    x = 11,298,559,989.90/119,494.66
  6. Step 6: Final answer
    x = 94,552.84

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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.