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Finding the Fourth Proportional to 100,933.80, 151,400.70 and 95,490.60

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Solution

The fourth proportional to 100,933.80, 151,400.70 and 95,490.60 is: 143,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,933.80 : 151,400.70 = 95,490.60 : x
  2. Step 2: Convert to fraction form
    100,933.80/151,400.70 = 95,490.60/x
  3. Step 3: Cross multiply
    100,933.80x = 151,400.70 × 95,490.60
  4. Step 4: Simplify right side
    100,933.80x = 14,457,343,683.42
  5. Step 5: Solve for x
    x = 14,457,343,683.42/100,933.80
  6. Step 6: Final answer
    x = 143,235.90

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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.