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Finding the Fourth Proportional to 97,291.94, 134,211.78 and 79,162.92

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Solution

The fourth proportional to 97,291.94, 134,211.78 and 79,162.92 is: 109,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,291.94 : 134,211.78 = 79,162.92 : x
  2. Step 2: Convert to fraction form
    97,291.94/134,211.78 = 79,162.92/x
  3. Step 3: Cross multiply
    97,291.94x = 134,211.78 × 79,162.92
  4. Step 4: Simplify right side
    97,291.94x = 10,624,596,403.20
  5. Step 5: Solve for x
    x = 10,624,596,403.20/97,291.94
  6. Step 6: Final answer
    x = 109,203.26

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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.