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Finding the Fourth Proportional to 73,762.20, 110,643.12 and 18,358.20

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Solution

The fourth proportional to 73,762.20, 110,643.12 and 18,358.20 is: 27,537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,762.20 : 110,643.12 = 18,358.20 : x
  2. Step 2: Convert to fraction form
    73,762.20/110,643.12 = 18,358.20/x
  3. Step 3: Cross multiply
    73,762.20x = 110,643.12 × 18,358.20
  4. Step 4: Simplify right side
    73,762.20x = 2,031,208,525.58
  5. Step 5: Solve for x
    x = 2,031,208,525.58/73,762.20
  6. Step 6: Final answer
    x = 27,537.26

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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.