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Finding the Fourth Proportional to 119,323.19, 164,666.63 and 65,611.67

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Solution

The fourth proportional to 119,323.19, 164,666.63 and 65,611.67 is: 90,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,323.19 : 164,666.63 = 65,611.67 : x
  2. Step 2: Convert to fraction form
    119,323.19/164,666.63 = 65,611.67/x
  3. Step 3: Cross multiply
    119,323.19x = 164,666.63 × 65,611.67
  4. Step 4: Simplify right side
    119,323.19x = 10,804,051,928.27
  5. Step 5: Solve for x
    x = 10,804,051,928.27/119,323.19
  6. Step 6: Final answer
    x = 90,544.44

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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.