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Finding the Fourth Proportional to 91,098.96, 136,674.88 and 37,781.16

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Solution

The fourth proportional to 91,098.96, 136,674.88 and 37,781.16 is: 56,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,098.96 : 136,674.88 = 37,781.16 : x
  2. Step 2: Convert to fraction form
    91,098.96/136,674.88 = 37,781.16/x
  3. Step 3: Cross multiply
    91,098.96x = 136,674.88 × 37,781.16
  4. Step 4: Simplify right side
    91,098.96x = 5,163,735,509.26
  5. Step 5: Solve for x
    x = 5,163,735,509.26/91,098.96
  6. Step 6: Final answer
    x = 56,682.71

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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.