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Finding the Fourth Proportional to 190,245.16, 285,400.61 and 63,897.61

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Solution

The fourth proportional to 190,245.16, 285,400.61 and 63,897.61 is: 95,857.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,245.16 : 285,400.61 = 63,897.61 : x
  2. Step 2: Convert to fraction form
    190,245.16/285,400.61 = 63,897.61/x
  3. Step 3: Cross multiply
    190,245.16x = 285,400.61 × 63,897.61
  4. Step 4: Simplify right side
    190,245.16x = 18,236,416,972.72
  5. Step 5: Solve for x
    x = 18,236,416,972.72/190,245.16
  6. Step 6: Final answer
    x = 95,857.46

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1.5x scale

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.