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Finding the Fourth Proportional to 190,471.04, 285,707.04 and 57,351.68

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Solution

The fourth proportional to 190,471.04, 285,707.04 and 57,351.68 is: 86,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,471.04 : 285,707.04 = 57,351.68 : x
  2. Step 2: Convert to fraction form
    190,471.04/285,707.04 = 57,351.68/x
  3. Step 3: Cross multiply
    190,471.04x = 285,707.04 × 57,351.68
  4. Step 4: Simplify right side
    190,471.04x = 16,385,778,731.83
  5. Step 5: Solve for x
    x = 16,385,778,731.83/190,471.04
  6. Step 6: Final answer
    x = 86,027.66

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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.