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Finding the Fourth Proportional to 190,747.80, 286,812.90 and 186,600.60

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Solution

The fourth proportional to 190,747.80, 286,812.90 and 186,600.60 is: 280,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,747.80 : 286,812.90 = 186,600.60 : x
  2. Step 2: Convert to fraction form
    190,747.80/286,812.90 = 186,600.60/x
  3. Step 3: Cross multiply
    190,747.80x = 286,812.90 × 186,600.60
  4. Step 4: Simplify right side
    190,747.80x = 53,519,459,227.74
  5. Step 5: Solve for x
    x = 53,519,459,227.74/190,747.80
  6. Step 6: Final answer
    x = 280,577.07

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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.