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Finding the Fourth Proportional to 69,624,872.88, 96,004,841.40 and 47,601,944.88

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Solution

The fourth proportional to 69,624,872.88, 96,004,841.40 and 47,601,944.88 is: 65,637,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,624,872.88 : 96,004,841.40 = 47,601,944.88 : x
  2. Step 2: Convert to fraction form
    69,624,872.88/96,004,841.40 = 47,601,944.88/x
  3. Step 3: Cross multiply
    69,624,872.88x = 96,004,841.40 × 47,601,944.88
  4. Step 4: Simplify right side
    69,624,872.88x = 4,570,017,168,535,943
  5. Step 5: Solve for x
    x = 4,570,017,168,535,943/69,624,872.88
  6. Step 6: Final answer
    x = 65,637,709.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.