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Finding the Fourth Proportional to 207,104.58, 310,722.12 and 73,981.89

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Solution

The fourth proportional to 207,104.58, 310,722.12 and 73,981.89 is: 110,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,104.58 : 310,722.12 = 73,981.89 : x
  2. Step 2: Convert to fraction form
    207,104.58/310,722.12 = 73,981.89/x
  3. Step 3: Cross multiply
    207,104.58x = 310,722.12 × 73,981.89
  4. Step 4: Simplify right side
    207,104.58x = 22,987,809,702.41
  5. Step 5: Solve for x
    x = 22,987,809,702.41/207,104.58
  6. Step 6: Final answer
    x = 110,996.14

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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.