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Finding the Fourth Proportional to 190,503.45, 285,770.76 and 95,684.88

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Solution

The fourth proportional to 190,503.45, 285,770.76 and 95,684.88 is: 143,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,503.45 : 285,770.76 = 95,684.88 : x
  2. Step 2: Convert to fraction form
    190,503.45/285,770.76 = 95,684.88/x
  3. Step 3: Cross multiply
    190,503.45x = 285,770.76 × 95,684.88
  4. Step 4: Simplify right side
    190,503.45x = 27,343,940,878.11
  5. Step 5: Solve for x
    x = 27,343,940,878.11/190,503.45
  6. Step 6: Final answer
    x = 143,535.15

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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.