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Finding the Fourth Proportional to 190,892.60, 286,338.90 and 155,463.20

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Solution

The fourth proportional to 190,892.60, 286,338.90 and 155,463.20 is: 233,194.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,892.60 : 286,338.90 = 155,463.20 : x
  2. Step 2: Convert to fraction form
    190,892.60/286,338.90 = 155,463.20/x
  3. Step 3: Cross multiply
    190,892.60x = 286,338.90 × 155,463.20
  4. Step 4: Simplify right side
    190,892.60x = 44,515,161,678.48
  5. Step 5: Solve for x
    x = 44,515,161,678.48/190,892.60
  6. Step 6: Final answer
    x = 233,194.80

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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.