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Finding the Fourth Proportional to 73,637.87, 110,353.80 and 39,830.87

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Solution

The fourth proportional to 73,637.87, 110,353.80 and 39,830.87 is: 59,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,637.87 : 110,353.80 = 39,830.87 : x
  2. Step 2: Convert to fraction form
    73,637.87/110,353.80 = 39,830.87/x
  3. Step 3: Cross multiply
    73,637.87x = 110,353.80 × 39,830.87
  4. Step 4: Simplify right side
    73,637.87x = 4,395,488,287.06
  5. Step 5: Solve for x
    x = 4,395,488,287.06/73,637.87
  6. Step 6: Final answer
    x = 59,690.60

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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.