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Finding the Fourth Proportional to 190,750, 286,176.03 and 66,091

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Solution

The fourth proportional to 190,750, 286,176.03 and 66,091 is: 99,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,750 : 286,176.03 = 66,091 : x
  2. Step 2: Convert to fraction form
    190,750/286,176.03 = 66,091/x
  3. Step 3: Cross multiply
    190,750x = 286,176.03 × 66,091
  4. Step 4: Simplify right side
    190,750x = 18,913,659,998.73
  5. Step 5: Solve for x
    x = 18,913,659,998.73/190,750
  6. Step 6: Final answer
    x = 99,154.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.