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Finding the Fourth Proportional to 100,670,026.80, 150,893,065.80 and 55,264,407.60

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Solution

The fourth proportional to 100,670,026.80, 150,893,065.80 and 55,264,407.60 is: 82,835,141.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,670,026.80 : 150,893,065.80 = 55,264,407.60 : x
  2. Step 2: Convert to fraction form
    100,670,026.80/150,893,065.80 = 55,264,407.60/x
  3. Step 3: Cross multiply
    100,670,026.80x = 150,893,065.80 × 55,264,407.60
  4. Step 4: Simplify right side
    100,670,026.80x = 8,339,015,892,384,821
  5. Step 5: Solve for x
    x = 8,339,015,892,384,821/100,670,026.80
  6. Step 6: Final answer
    x = 82,835,141.28

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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.