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Finding the Fourth Proportional to 74,953.80, 112,375.34 and 45,365.14

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Solution

The fourth proportional to 74,953.80, 112,375.34 and 45,365.14 is: 68,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,953.80 : 112,375.34 = 45,365.14 : x
  2. Step 2: Convert to fraction form
    74,953.80/112,375.34 = 45,365.14/x
  3. Step 3: Cross multiply
    74,953.80x = 112,375.34 × 45,365.14
  4. Step 4: Simplify right side
    74,953.80x = 5,097,923,031.65
  5. Step 5: Solve for x
    x = 5,097,923,031.65/74,953.80
  6. Step 6: Final answer
    x = 68,014.20

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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.