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Finding the Fourth Proportional to 117,877,070.80, 176,815,606.20 and 60,481,442.80

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Solution

The fourth proportional to 117,877,070.80, 176,815,606.20 and 60,481,442.80 is: 90,722,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,877,070.80 : 176,815,606.20 = 60,481,442.80 : x
  2. Step 2: Convert to fraction form
    117,877,070.80/176,815,606.20 = 60,481,442.80/x
  3. Step 3: Cross multiply
    117,877,070.80x = 176,815,606.20 × 60,481,442.80
  4. Step 4: Simplify right side
    117,877,070.80x = 10,694,062,972,532,624
  5. Step 5: Solve for x
    x = 10,694,062,972,532,624/117,877,070.80
  6. Step 6: Final answer
    x = 90,722,164.20

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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.