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Finding the Fourth Proportional to 101,033,907.70, 151,550,861.55 and 68,748,866.95

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Solution

The fourth proportional to 101,033,907.70, 151,550,861.55 and 68,748,866.95 is: 103,123,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,033,907.70 : 151,550,861.55 = 68,748,866.95 : x
  2. Step 2: Convert to fraction form
    101,033,907.70/151,550,861.55 = 68,748,866.95/x
  3. Step 3: Cross multiply
    101,033,907.70x = 151,550,861.55 × 68,748,866.95
  4. Step 4: Simplify right side
    101,033,907.70x = 10,418,950,016,858,822
  5. Step 5: Solve for x
    x = 10,418,950,016,858,822/101,033,907.70
  6. Step 6: Final answer
    x = 103,123,300.43

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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.