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Finding the Fourth Proportional to 101,796,906.60, 152,695,359.90 and 53,256,004.20

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Solution

The fourth proportional to 101,796,906.60, 152,695,359.90 and 53,256,004.20 is: 79,884,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,796,906.60 : 152,695,359.90 = 53,256,004.20 : x
  2. Step 2: Convert to fraction form
    101,796,906.60/152,695,359.90 = 53,256,004.20/x
  3. Step 3: Cross multiply
    101,796,906.60x = 152,695,359.90 × 53,256,004.20
  4. Step 4: Simplify right side
    101,796,906.60x = 8,131,944,728,154,912
  5. Step 5: Solve for x
    x = 8,131,944,728,154,912/101,796,906.60
  6. Step 6: Final answer
    x = 79,884,006.30

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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.