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Finding the Fourth Proportional to 368,813.31, 553,074.40 and 179,217.51

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Solution

The fourth proportional to 368,813.31, 553,074.40 and 179,217.51 is: 268,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,813.31 : 553,074.40 = 179,217.51 : x
  2. Step 2: Convert to fraction form
    368,813.31/553,074.40 = 179,217.51/x
  3. Step 3: Cross multiply
    368,813.31x = 553,074.40 × 179,217.51
  4. Step 4: Simplify right side
    368,813.31x = 99,120,616,812.74
  5. Step 5: Solve for x
    x = 99,120,616,812.74/368,813.31
  6. Step 6: Final answer
    x = 268,755.53

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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.