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Finding the Fourth Proportional to 275,245,280.70, 412,867,921.05 and 93,492,458.70

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Solution

The fourth proportional to 275,245,280.70, 412,867,921.05 and 93,492,458.70 is: 140,238,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,245,280.70 : 412,867,921.05 = 93,492,458.70 : x
  2. Step 2: Convert to fraction form
    275,245,280.70/412,867,921.05 = 93,492,458.70/x
  3. Step 3: Cross multiply
    275,245,280.70x = 412,867,921.05 × 93,492,458.70
  4. Step 4: Simplify right side
    275,245,280.70x = 38,600,037,057,321,984
  5. Step 5: Solve for x
    x = 38,600,037,057,321,984/275,245,280.70
  6. Step 6: Final answer
    x = 140,238,688.05

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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.