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Finding the Fourth Proportional to 323,653.46, 485,462.63 and 99,013.93

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Solution

The fourth proportional to 323,653.46, 485,462.63 and 99,013.93 is: 148,515.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,653.46 : 485,462.63 = 99,013.93 : x
  2. Step 2: Convert to fraction form
    323,653.46/485,462.63 = 99,013.93/x
  3. Step 3: Cross multiply
    323,653.46x = 485,462.63 × 99,013.93
  4. Step 4: Simplify right side
    323,653.46x = 48,067,561,898.31
  5. Step 5: Solve for x
    x = 48,067,561,898.31/323,653.46
  6. Step 6: Final answer
    x = 148,515.52

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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.