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Finding the Fourth Proportional to 251,411,716.80, 346,978,372.77 and 152,289,555.84

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Solution

The fourth proportional to 251,411,716.80, 346,978,372.77 and 152,289,555.84 is: 210,177,882.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,411,716.80 : 346,978,372.77 = 152,289,555.84 : x
  2. Step 2: Convert to fraction form
    251,411,716.80/346,978,372.77 = 152,289,555.84/x
  3. Step 3: Cross multiply
    251,411,716.80x = 346,978,372.77 × 152,289,555.84
  4. Step 4: Simplify right side
    251,411,716.80x = 52,841,182,275,229,248
  5. Step 5: Solve for x
    x = 52,841,182,275,229,248/251,411,716.80
  6. Step 6: Final answer
    x = 210,177,882.51

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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.