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Finding the Fourth Proportional to 101,154,467.80, 151,731,701.70 and 75,645,299.80

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Solution

The fourth proportional to 101,154,467.80, 151,731,701.70 and 75,645,299.80 is: 113,467,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,154,467.80 : 151,731,701.70 = 75,645,299.80 : x
  2. Step 2: Convert to fraction form
    101,154,467.80/151,731,701.70 = 75,645,299.80/x
  3. Step 3: Cross multiply
    101,154,467.80x = 151,731,701.70 × 75,645,299.80
  4. Step 4: Simplify right side
    101,154,467.80x = 11,477,790,064,260,668
  5. Step 5: Solve for x
    x = 11,477,790,064,260,668/101,154,467.80
  6. Step 6: Final answer
    x = 113,467,949.70

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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.