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Finding the Fourth Proportional to 190,792.92, 286,189.38 and 66,133.92

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Solution

The fourth proportional to 190,792.92, 286,189.38 and 66,133.92 is: 99,200.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,792.92 : 286,189.38 = 66,133.92 : x
  2. Step 2: Convert to fraction form
    190,792.92/286,189.38 = 66,133.92/x
  3. Step 3: Cross multiply
    190,792.92x = 286,189.38 × 66,133.92
  4. Step 4: Simplify right side
    190,792.92x = 18,926,825,561.77
  5. Step 5: Solve for x
    x = 18,926,825,561.77/190,792.92
  6. Step 6: Final answer
    x = 99,200.88

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1.5x scale

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.