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Finding the Fourth Proportional to 190,552, 285,839.98 and 64,181.92

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Solution

The fourth proportional to 190,552, 285,839.98 and 64,181.92 is: 96,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,552 : 285,839.98 = 64,181.92 : x
  2. Step 2: Convert to fraction form
    190,552/285,839.98 = 64,181.92/x
  3. Step 3: Cross multiply
    190,552x = 285,839.98 × 64,181.92
  4. Step 4: Simplify right side
    190,552x = 18,345,758,729.16
  5. Step 5: Solve for x
    x = 18,345,758,729.16/190,552
  6. Step 6: Final answer
    x = 96,276.92

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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.