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Finding the Fourth Proportional to 146,789,111.20, 220,183,666.80 and 60,483,092.80

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Solution

The fourth proportional to 146,789,111.20, 220,183,666.80 and 60,483,092.80 is: 90,724,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,789,111.20 : 220,183,666.80 = 60,483,092.80 : x
  2. Step 2: Convert to fraction form
    146,789,111.20/220,183,666.80 = 60,483,092.80/x
  3. Step 3: Cross multiply
    146,789,111.20x = 220,183,666.80 × 60,483,092.80
  4. Step 4: Simplify right side
    146,789,111.20x = 13,317,389,152,108,680
  5. Step 5: Solve for x
    x = 13,317,389,152,108,680/146,789,111.20
  6. Step 6: Final answer
    x = 90,724,639.20

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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.