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Finding the Fourth Proportional to 91,894.53, 126,817.30 and 51,609.16

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Solution

The fourth proportional to 91,894.53, 126,817.30 and 51,609.16 is: 71,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,894.53 : 126,817.30 = 51,609.16 : x
  2. Step 2: Convert to fraction form
    91,894.53/126,817.30 = 51,609.16/x
  3. Step 3: Cross multiply
    91,894.53x = 126,817.30 × 51,609.16
  4. Step 4: Simplify right side
    91,894.53x = 6,544,933,434.34
  5. Step 5: Solve for x
    x = 6,544,933,434.34/91,894.53
  6. Step 6: Final answer
    x = 71,222.23

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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.