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Finding the Fourth Proportional to 190,663.52, 285,795.68 and 64,260.02

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Solution

The fourth proportional to 190,663.52, 285,795.68 and 64,260.02 is: 96,322.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,663.52 : 285,795.68 = 64,260.02 : x
  2. Step 2: Convert to fraction form
    190,663.52/285,795.68 = 64,260.02/x
  3. Step 3: Cross multiply
    190,663.52x = 285,795.68 × 64,260.02
  4. Step 4: Simplify right side
    190,663.52x = 18,365,236,505.90
  5. Step 5: Solve for x
    x = 18,365,236,505.90/190,663.52
  6. Step 6: Final answer
    x = 96,322.76

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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.