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Finding the Fourth Proportional to 120,802.68, 166,680.84 and 73,055.04

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Solution

The fourth proportional to 120,802.68, 166,680.84 and 73,055.04 is: 100,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,802.68 : 166,680.84 = 73,055.04 : x
  2. Step 2: Convert to fraction form
    120,802.68/166,680.84 = 73,055.04/x
  3. Step 3: Cross multiply
    120,802.68x = 166,680.84 × 73,055.04
  4. Step 4: Simplify right side
    120,802.68x = 12,176,875,433.43
  5. Step 5: Solve for x
    x = 12,176,875,433.43/120,802.68
  6. Step 6: Final answer
    x = 100,799.71

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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.