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Finding the Fourth Proportional to 190,353.20, 285,529.80 and 181,605.20

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Solution

The fourth proportional to 190,353.20, 285,529.80 and 181,605.20 is: 272,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,353.20 : 285,529.80 = 181,605.20 : x
  2. Step 2: Convert to fraction form
    190,353.20/285,529.80 = 181,605.20/x
  3. Step 3: Cross multiply
    190,353.20x = 285,529.80 × 181,605.20
  4. Step 4: Simplify right side
    190,353.20x = 51,853,696,434.96
  5. Step 5: Solve for x
    x = 51,853,696,434.96/190,353.20
  6. Step 6: Final answer
    x = 272,407.80

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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.