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Finding the Fourth Proportional to 53,761,487.20, 80,642,230.80 and 19,683,944.80

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Solution

The fourth proportional to 53,761,487.20, 80,642,230.80 and 19,683,944.80 is: 29,525,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,761,487.20 : 80,642,230.80 = 19,683,944.80 : x
  2. Step 2: Convert to fraction form
    53,761,487.20/80,642,230.80 = 19,683,944.80/x
  3. Step 3: Cross multiply
    53,761,487.20x = 80,642,230.80 × 19,683,944.80
  4. Step 4: Simplify right side
    53,761,487.20x = 1,587,357,219,616,059.75
  5. Step 5: Solve for x
    x = 1,587,357,219,616,059.75/53,761,487.20
  6. Step 6: Final answer
    x = 29,525,917.20

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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.