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Finding the Fourth Proportional to 116,043.60, 173,719.80 and 69,272.40

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Solution

The fourth proportional to 116,043.60, 173,719.80 and 69,272.40 is: 103,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,043.60 : 173,719.80 = 69,272.40 : x
  2. Step 2: Convert to fraction form
    116,043.60/173,719.80 = 69,272.40/x
  3. Step 3: Cross multiply
    116,043.60x = 173,719.80 × 69,272.40
  4. Step 4: Simplify right side
    116,043.60x = 12,033,987,473.52
  5. Step 5: Solve for x
    x = 12,033,987,473.52/116,043.60
  6. Step 6: Final answer
    x = 103,702.29

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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.