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Finding the Fourth Proportional to 79,626.60, 119,267.10 and 65,802.60

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Solution

The fourth proportional to 79,626.60, 119,267.10 and 65,802.60 is: 98,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,626.60 : 119,267.10 = 65,802.60 : x
  2. Step 2: Convert to fraction form
    79,626.60/119,267.10 = 65,802.60/x
  3. Step 3: Cross multiply
    79,626.60x = 119,267.10 × 65,802.60
  4. Step 4: Simplify right side
    79,626.60x = 7,848,085,274.46
  5. Step 5: Solve for x
    x = 7,848,085,274.46/79,626.60
  6. Step 6: Final answer
    x = 98,561.10

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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.