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Finding the Fourth Proportional to 75,001.68, 103,292.28 and 73,368.72

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Solution

The fourth proportional to 75,001.68, 103,292.28 and 73,368.72 is: 101,043.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,001.68 : 103,292.28 = 73,368.72 : x
  2. Step 2: Convert to fraction form
    75,001.68/103,292.28 = 73,368.72/x
  3. Step 3: Cross multiply
    75,001.68x = 103,292.28 × 73,368.72
  4. Step 4: Simplify right side
    75,001.68x = 7,578,422,369.48
  5. Step 5: Solve for x
    x = 7,578,422,369.48/75,001.68
  6. Step 6: Final answer
    x = 101,043.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.