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Finding the Fourth Proportional to 202,375,716.66, 279,278,579.16 and 109,556,221.50

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Solution

The fourth proportional to 202,375,716.66, 279,278,579.16 and 109,556,221.50 is: 151,187,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,375,716.66 : 279,278,579.16 = 109,556,221.50 : x
  2. Step 2: Convert to fraction form
    202,375,716.66/279,278,579.16 = 109,556,221.50/x
  3. Step 3: Cross multiply
    202,375,716.66x = 279,278,579.16 × 109,556,221.50
  4. Step 4: Simplify right side
    202,375,716.66x = 30,596,705,878,658,248
  5. Step 5: Solve for x
    x = 30,596,705,878,658,248/202,375,716.66
  6. Step 6: Final answer
    x = 151,187,634.48

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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.