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Finding the Fourth Proportional to 98,950.91, 136,477.53 and 62,167.82

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Solution

The fourth proportional to 98,950.91, 136,477.53 and 62,167.82 is: 85,744.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,950.91 : 136,477.53 = 62,167.82 : x
  2. Step 2: Convert to fraction form
    98,950.91/136,477.53 = 62,167.82/x
  3. Step 3: Cross multiply
    98,950.91x = 136,477.53 × 62,167.82
  4. Step 4: Simplify right side
    98,950.91x = 8,484,509,836.70
  5. Step 5: Solve for x
    x = 8,484,509,836.70/98,950.91
  6. Step 6: Final answer
    x = 85,744.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.