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Finding the Fourth Proportional to 207,028.07, 310,607.71 and 73,905.38

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Solution

The fourth proportional to 207,028.07, 310,607.71 and 73,905.38 is: 110,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,028.07 : 310,607.71 = 73,905.38 : x
  2. Step 2: Convert to fraction form
    207,028.07/310,607.71 = 73,905.38/x
  3. Step 3: Cross multiply
    207,028.07x = 310,607.71 × 73,905.38
  4. Step 4: Simplify right side
    207,028.07x = 22,955,579,100.68
  5. Step 5: Solve for x
    x = 22,955,579,100.68/207,028.07
  6. Step 6: Final answer
    x = 110,881.48

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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.