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Finding the Fourth Proportional to 207,036.09, 310,619.76 and 73,913.40

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Solution

The fourth proportional to 207,036.09, 310,619.76 and 73,913.40 is: 110,893.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,036.09 : 310,619.76 = 73,913.40 : x
  2. Step 2: Convert to fraction form
    207,036.09/310,619.76 = 73,913.40/x
  3. Step 3: Cross multiply
    207,036.09x = 310,619.76 × 73,913.40
  4. Step 4: Simplify right side
    207,036.09x = 22,958,962,568.78
  5. Step 5: Solve for x
    x = 22,958,962,568.78/207,036.09
  6. Step 6: Final answer
    x = 110,893.53

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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.