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Finding the Fourth Proportional to 101,385.90, 152,086.71 and 30,303.62

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Solution

The fourth proportional to 101,385.90, 152,086.71 and 30,303.62 is: 45,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,385.90 : 152,086.71 = 30,303.62 : x
  2. Step 2: Convert to fraction form
    101,385.90/152,086.71 = 30,303.62/x
  3. Step 3: Cross multiply
    101,385.90x = 152,086.71 × 30,303.62
  4. Step 4: Simplify right side
    101,385.90x = 4,608,777,790.42
  5. Step 5: Solve for x
    x = 4,608,777,790.42/101,385.90
  6. Step 6: Final answer
    x = 45,457.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.