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Finding the Fourth Proportional to 190,240.65, 285,373.29 and 63,875.79

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Solution

The fourth proportional to 190,240.65, 285,373.29 and 63,875.79 is: 95,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,240.65 : 285,373.29 = 63,875.79 : x
  2. Step 2: Convert to fraction form
    190,240.65/285,373.29 = 63,875.79/x
  3. Step 3: Cross multiply
    190,240.65x = 285,373.29 × 63,875.79
  4. Step 4: Simplify right side
    190,240.65x = 18,228,444,343.65
  5. Step 5: Solve for x
    x = 18,228,444,343.65/190,240.65
  6. Step 6: Final answer
    x = 95,817.82

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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.