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Finding the Fourth Proportional to 73,289.68, 109,934.78 and 17,885.68

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Solution

The fourth proportional to 73,289.68, 109,934.78 and 17,885.68 is: 26,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,289.68 : 109,934.78 = 17,885.68 : x
  2. Step 2: Convert to fraction form
    73,289.68/109,934.78 = 17,885.68/x
  3. Step 3: Cross multiply
    73,289.68x = 109,934.78 × 17,885.68
  4. Step 4: Simplify right side
    73,289.68x = 1,966,258,295.95
  5. Step 5: Solve for x
    x = 1,966,258,295.95/73,289.68
  6. Step 6: Final answer
    x = 26,828.58

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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.