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Finding the Fourth Proportional to 119,162.39, 164,444.18 and 65,450.07

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Solution

The fourth proportional to 119,162.39, 164,444.18 and 65,450.07 is: 90,321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,162.39 : 164,444.18 = 65,450.07 : x
  2. Step 2: Convert to fraction form
    119,162.39/164,444.18 = 65,450.07/x
  3. Step 3: Cross multiply
    119,162.39x = 164,444.18 × 65,450.07
  4. Step 4: Simplify right side
    119,162.39x = 10,762,882,764.84
  5. Step 5: Solve for x
    x = 10,762,882,764.84/119,162.39
  6. Step 6: Final answer
    x = 90,321.14

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1.5x scale

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.