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Finding the Fourth Proportional to 61,937,803.70, 92,906,705.55 and 21,548,287.70

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Solution

The fourth proportional to 61,937,803.70, 92,906,705.55 and 21,548,287.70 is: 32,322,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,937,803.70 : 92,906,705.55 = 21,548,287.70 : x
  2. Step 2: Convert to fraction form
    61,937,803.70/92,906,705.55 = 21,548,287.70/x
  3. Step 3: Cross multiply
    61,937,803.70x = 92,906,705.55 × 21,548,287.70
  4. Step 4: Simplify right side
    61,937,803.70x = 2,001,980,420,450,586.50
  5. Step 5: Solve for x
    x = 2,001,980,420,450,586.50/61,937,803.70
  6. Step 6: Final answer
    x = 32,322,431.55

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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.