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Finding the Fourth Proportional to 101,154,061.80, 151,731,092.70 and 75,644,893.80

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Solution

The fourth proportional to 101,154,061.80, 151,731,092.70 and 75,644,893.80 is: 113,467,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,154,061.80 : 151,731,092.70 = 75,644,893.80 : x
  2. Step 2: Convert to fraction form
    101,154,061.80/151,731,092.70 = 75,644,893.80/x
  3. Step 3: Cross multiply
    101,154,061.80x = 151,731,092.70 × 75,644,893.80
  4. Step 4: Simplify right side
    101,154,061.80x = 11,477,682,393,449,454
  5. Step 5: Solve for x
    x = 11,477,682,393,449,454/101,154,061.80
  6. Step 6: Final answer
    x = 113,467,340.70

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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.