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Finding the Fourth Proportional to 79,258.59, 118,813.46 and 26,631.27

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Solution

The fourth proportional to 79,258.59, 118,813.46 and 26,631.27 is: 39,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,258.59 : 118,813.46 = 26,631.27 : x
  2. Step 2: Convert to fraction form
    79,258.59/118,813.46 = 26,631.27/x
  3. Step 3: Cross multiply
    79,258.59x = 118,813.46 × 26,631.27
  4. Step 4: Simplify right side
    79,258.59x = 3,164,153,332.89
  5. Step 5: Solve for x
    x = 3,164,153,332.89/79,258.59
  6. Step 6: Final answer
    x = 39,921.90

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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.