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Finding the Fourth Proportional to 79,496.76, 119,076.66 and 54,419.16

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Solution

The fourth proportional to 79,496.76, 119,076.66 and 54,419.16 is: 81,513.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,496.76 : 119,076.66 = 54,419.16 : x
  2. Step 2: Convert to fraction form
    79,496.76/119,076.66 = 54,419.16/x
  3. Step 3: Cross multiply
    79,496.76x = 119,076.66 × 54,419.16
  4. Step 4: Simplify right side
    79,496.76x = 6,480,051,812.81
  5. Step 5: Solve for x
    x = 6,480,051,812.81/79,496.76
  6. Step 6: Final answer
    x = 81,513.41

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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.