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Finding the Fourth Proportional to 91,864.77, 137,668.77 and 49,653.83

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Solution

The fourth proportional to 91,864.77, 137,668.77 and 49,653.83 is: 74,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,864.77 : 137,668.77 = 49,653.83 : x
  2. Step 2: Convert to fraction form
    91,864.77/137,668.77 = 49,653.83/x
  3. Step 3: Cross multiply
    91,864.77x = 137,668.77 × 49,653.83
  4. Step 4: Simplify right side
    91,864.77x = 6,835,781,013.55
  5. Step 5: Solve for x
    x = 6,835,781,013.55/91,864.77
  6. Step 6: Final answer
    x = 74,411.34

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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.