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Finding the Fourth Proportional to 190,525.92, 285,687.72 and 64,123.98

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Solution

The fourth proportional to 190,525.92, 285,687.72 and 64,123.98 is: 96,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,525.92 : 285,687.72 = 64,123.98 : x
  2. Step 2: Convert to fraction form
    190,525.92/285,687.72 = 64,123.98/x
  3. Step 3: Cross multiply
    190,525.92x = 285,687.72 × 64,123.98
  4. Step 4: Simplify right side
    190,525.92x = 18,319,433,643.53
  5. Step 5: Solve for x
    x = 18,319,433,643.53/190,525.92
  6. Step 6: Final answer
    x = 96,151.92

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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.