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Finding the Fourth Proportional to 252,493,849.80, 378,740,774.70 and 88,756,877.70

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Solution

The fourth proportional to 252,493,849.80, 378,740,774.70 and 88,756,877.70 is: 133,135,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,493,849.80 : 378,740,774.70 = 88,756,877.70 : x
  2. Step 2: Convert to fraction form
    252,493,849.80/378,740,774.70 = 88,756,877.70/x
  3. Step 3: Cross multiply
    252,493,849.80x = 378,740,774.70 × 88,756,877.70
  4. Step 4: Simplify right side
    252,493,849.80x = 33,615,848,620,051,156
  5. Step 5: Solve for x
    x = 33,615,848,620,051,156/252,493,849.80
  6. Step 6: Final answer
    x = 133,135,316.55

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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.