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Finding the Fourth Proportional to 305,066.67, 457,415.24 and 136,555.53

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Solution

The fourth proportional to 305,066.67, 457,415.24 and 136,555.53 is: 204,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,066.67 : 457,415.24 = 136,555.53 : x
  2. Step 2: Convert to fraction form
    305,066.67/457,415.24 = 136,555.53/x
  3. Step 3: Cross multiply
    305,066.67x = 457,415.24 × 136,555.53
  4. Step 4: Simplify right side
    305,066.67x = 62,462,579,845.50
  5. Step 5: Solve for x
    x = 62,462,579,845.50/305,066.67
  6. Step 6: Final answer
    x = 204,750.59

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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.