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Finding the Fourth Proportional to 308,808,052.80, 463,380,040.80 and 127,073,601.60

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Solution

The fourth proportional to 308,808,052.80, 463,380,040.80 and 127,073,601.60 is: 190,679,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,808,052.80 : 463,380,040.80 = 127,073,601.60 : x
  2. Step 2: Convert to fraction form
    308,808,052.80/463,380,040.80 = 127,073,601.60/x
  3. Step 3: Cross multiply
    308,808,052.80x = 463,380,040.80 × 127,073,601.60
  4. Step 4: Simplify right side
    308,808,052.80x = 58,883,370,694,010,944
  5. Step 5: Solve for x
    x = 58,883,370,694,010,944/308,808,052.80
  6. Step 6: Final answer
    x = 190,679,518.10

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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.