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Finding the Fourth Proportional to 207,103.84, 310,720.96 and 73,981.14

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Solution

The fourth proportional to 207,103.84, 310,720.96 and 73,981.14 is: 110,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,103.84 : 310,720.96 = 73,981.14 : x
  2. Step 2: Convert to fraction form
    207,103.84/310,720.96 = 73,981.14/x
  3. Step 3: Cross multiply
    207,103.84x = 310,720.96 × 73,981.14
  4. Step 4: Simplify right side
    207,103.84x = 22,987,490,842.69
  5. Step 5: Solve for x
    x = 22,987,490,842.69/207,103.84
  6. Step 6: Final answer
    x = 110,995.00

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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.