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Finding the Fourth Proportional to 119,318.86, 164,655.60 and 65,600.67

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Solution

The fourth proportional to 119,318.86, 164,655.60 and 65,600.67 is: 90,526.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,318.86 : 164,655.60 = 65,600.67 : x
  2. Step 2: Convert to fraction form
    119,318.86/164,655.60 = 65,600.67/x
  3. Step 3: Cross multiply
    119,318.86x = 164,655.60 × 65,600.67
  4. Step 4: Simplify right side
    119,318.86x = 10,801,517,679.25
  5. Step 5: Solve for x
    x = 10,801,517,679.25/119,318.86
  6. Step 6: Final answer
    x = 90,526.49

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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.