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Finding the Fourth Proportional to 190,414.80, 285,564.63 and 57,259.71

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Solution

The fourth proportional to 190,414.80, 285,564.63 and 57,259.71 is: 85,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,414.80 : 285,564.63 = 57,259.71 : x
  2. Step 2: Convert to fraction form
    190,414.80/285,564.63 = 57,259.71/x
  3. Step 3: Cross multiply
    190,414.80x = 285,564.63 × 57,259.71
  4. Step 4: Simplify right side
    190,414.80x = 16,351,347,900.06
  5. Step 5: Solve for x
    x = 16,351,347,900.06/190,414.80
  6. Step 6: Final answer
    x = 85,872.25

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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.