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Finding the Fourth Proportional to 73,281.60, 109,922.40 and 17,877.60

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Solution

The fourth proportional to 73,281.60, 109,922.40 and 17,877.60 is: 26,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,281.60 : 109,922.40 = 17,877.60 : x
  2. Step 2: Convert to fraction form
    73,281.60/109,922.40 = 17,877.60/x
  3. Step 3: Cross multiply
    73,281.60x = 109,922.40 × 17,877.60
  4. Step 4: Simplify right side
    73,281.60x = 1,965,148,698.24
  5. Step 5: Solve for x
    x = 1,965,148,698.24/73,281.60
  6. Step 6: Final answer
    x = 26,816.40

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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.