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Finding the Fourth Proportional to 146,760,978.20, 220,141,467.30 and 98,388,037.40

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Solution

The fourth proportional to 146,760,978.20, 220,141,467.30 and 98,388,037.40 is: 147,582,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,760,978.20 : 220,141,467.30 = 98,388,037.40 : x
  2. Step 2: Convert to fraction form
    146,760,978.20/220,141,467.30 = 98,388,037.40/x
  3. Step 3: Cross multiply
    146,760,978.20x = 220,141,467.30 × 98,388,037.40
  4. Step 4: Simplify right side
    146,760,978.20x = 21,659,286,918,003,280
  5. Step 5: Solve for x
    x = 21,659,286,918,003,280/146,760,978.20
  6. Step 6: Final answer
    x = 147,582,056.10

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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.