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Finding the Fourth Proportional to 190,051.70, 285,010.35 and 65,363.70

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Solution

The fourth proportional to 190,051.70, 285,010.35 and 65,363.70 is: 98,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,051.70 : 285,010.35 = 65,363.70 : x
  2. Step 2: Convert to fraction form
    190,051.70/285,010.35 = 65,363.70/x
  3. Step 3: Cross multiply
    190,051.70x = 285,010.35 × 65,363.70
  4. Step 4: Simplify right side
    190,051.70x = 18,629,331,014.30
  5. Step 5: Solve for x
    x = 18,629,331,014.30/190,051.70
  6. Step 6: Final answer
    x = 98,022.44

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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.