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Finding the Fourth Proportional to 69,582,133.60, 104,373,200.40 and 42,372,354.40

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Solution

The fourth proportional to 69,582,133.60, 104,373,200.40 and 42,372,354.40 is: 63,558,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,582,133.60 : 104,373,200.40 = 42,372,354.40 : x
  2. Step 2: Convert to fraction form
    69,582,133.60/104,373,200.40 = 42,372,354.40/x
  3. Step 3: Cross multiply
    69,582,133.60x = 104,373,200.40 × 42,372,354.40
  4. Step 4: Simplify right side
    69,582,133.60x = 4,422,538,237,211,022
  5. Step 5: Solve for x
    x = 4,422,538,237,211,022/69,582,133.60
  6. Step 6: Final answer
    x = 63,558,531.60

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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.