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Finding the Fourth Proportional to 190,553.60, 285,843.77 and 57,434.96

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Solution

The fourth proportional to 190,553.60, 285,843.77 and 57,434.96 is: 86,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,553.60 : 285,843.77 = 57,434.96 : x
  2. Step 2: Convert to fraction form
    190,553.60/285,843.77 = 57,434.96/x
  3. Step 3: Cross multiply
    190,553.60x = 285,843.77 × 57,434.96
  4. Step 4: Simplify right side
    190,553.60x = 16,417,425,209.02
  5. Step 5: Solve for x
    x = 16,417,425,209.02/190,553.60
  6. Step 6: Final answer
    x = 86,156.47

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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.