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Finding the Fourth Proportional to 146,760,978.70, 220,141,468.05 and 98,388,037.90

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Solution

The fourth proportional to 146,760,978.70, 220,141,468.05 and 98,388,037.90 is: 147,582,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,760,978.70 : 220,141,468.05 = 98,388,037.90 : x
  2. Step 2: Convert to fraction form
    146,760,978.70/220,141,468.05 = 98,388,037.90/x
  3. Step 3: Cross multiply
    146,760,978.70x = 220,141,468.05 × 98,388,037.90
  4. Step 4: Simplify right side
    146,760,978.70x = 21,659,287,101,865,040
  5. Step 5: Solve for x
    x = 21,659,287,101,865,040/146,760,978.70
  6. Step 6: Final answer
    x = 147,582,056.85

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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.