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Finding the Fourth Proportional to 119,803.92, 165,322.32 and 66,089.04

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Solution

The fourth proportional to 119,803.92, 165,322.32 and 66,089.04 is: 91,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,803.92 : 165,322.32 = 66,089.04 : x
  2. Step 2: Convert to fraction form
    119,803.92/165,322.32 = 66,089.04/x
  3. Step 3: Cross multiply
    119,803.92x = 165,322.32 × 66,089.04
  4. Step 4: Simplify right side
    119,803.92x = 10,925,993,419.37
  5. Step 5: Solve for x
    x = 10,925,993,419.37/119,803.92
  6. Step 6: Final answer
    x = 91,198.96

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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.