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Finding the Fourth Proportional to 482,873.99, 724,317.84 and 145,917.45

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Solution

The fourth proportional to 482,873.99, 724,317.84 and 145,917.45 is: 218,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,873.99 : 724,317.84 = 145,917.45 : x
  2. Step 2: Convert to fraction form
    482,873.99/724,317.84 = 145,917.45/x
  3. Step 3: Cross multiply
    482,873.99x = 724,317.84 × 145,917.45
  4. Step 4: Simplify right side
    482,873.99x = 105,690,612,202.31
  5. Step 5: Solve for x
    x = 105,690,612,202.31/482,873.99
  6. Step 6: Final answer
    x = 218,878.25

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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.