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Finding the Fourth Proportional to 190,337.70, 285,525.99 and 65,662.50

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Solution

The fourth proportional to 190,337.70, 285,525.99 and 65,662.50 is: 98,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,337.70 : 285,525.99 = 65,662.50 : x
  2. Step 2: Convert to fraction form
    190,337.70/285,525.99 = 65,662.50/x
  3. Step 3: Cross multiply
    190,337.70x = 285,525.99 × 65,662.50
  4. Step 4: Simplify right side
    190,337.70x = 18,748,350,318.38
  5. Step 5: Solve for x
    x = 18,748,350,318.38/190,337.70
  6. Step 6: Final answer
    x = 98,500.46

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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.