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Finding the Fourth Proportional to 559,872,144.60, 839,808,216.90 and 171,691,891.80

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Solution

The fourth proportional to 559,872,144.60, 839,808,216.90 and 171,691,891.80 is: 257,537,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,144.60 : 839,808,216.90 = 171,691,891.80 : x
  2. Step 2: Convert to fraction form
    559,872,144.60/839,808,216.90 = 171,691,891.80/x
  3. Step 3: Cross multiply
    559,872,144.60x = 839,808,216.90 × 171,691,891.80
  4. Step 4: Simplify right side
    559,872,144.60x = 144,188,261,508,745,728
  5. Step 5: Solve for x
    x = 144,188,261,508,745,728/559,872,144.60
  6. Step 6: Final answer
    x = 257,537,837.70

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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.