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Finding the Fourth Proportional to 190,527.92, 285,690.72 and 64,125.98

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Solution

The fourth proportional to 190,527.92, 285,690.72 and 64,125.98 is: 96,154.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,527.92 : 285,690.72 = 64,125.98 : x
  2. Step 2: Convert to fraction form
    190,527.92/285,690.72 = 64,125.98/x
  3. Step 3: Cross multiply
    190,527.92x = 285,690.72 × 64,125.98
  4. Step 4: Simplify right side
    190,527.92x = 18,320,197,396.91
  5. Step 5: Solve for x
    x = 18,320,197,396.91/190,527.92
  6. Step 6: Final answer
    x = 96,154.92

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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.