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Finding the Fourth Proportional to 59,573,896.80, 89,371,342.80 and 21,257,656.80

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Solution

The fourth proportional to 59,573,896.80, 89,371,342.80 and 21,257,656.80 is: 31,890,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,573,896.80 : 89,371,342.80 = 21,257,656.80 : x
  2. Step 2: Convert to fraction form
    59,573,896.80/89,371,342.80 = 21,257,656.80/x
  3. Step 3: Cross multiply
    59,573,896.80x = 89,371,342.80 × 21,257,656.80
  4. Step 4: Simplify right side
    59,573,896.80x = 1,899,825,332,997,551
  5. Step 5: Solve for x
    x = 1,899,825,332,997,551/59,573,896.80
  6. Step 6: Final answer
    x = 31,890,231.04

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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.