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Finding the Fourth Proportional to 73,838.65, 101,897.31 and 40,304.65

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Solution

The fourth proportional to 73,838.65, 101,897.31 and 40,304.65 is: 55,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,838.65 : 101,897.31 = 40,304.65 : x
  2. Step 2: Convert to fraction form
    73,838.65/101,897.31 = 40,304.65/x
  3. Step 3: Cross multiply
    73,838.65x = 101,897.31 × 40,304.65
  4. Step 4: Simplify right side
    73,838.65x = 4,106,935,415.49
  5. Step 5: Solve for x
    x = 4,106,935,415.49/73,838.65
  6. Step 6: Final answer
    x = 55,620.40

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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.