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Finding the Fourth Proportional to 565,548.30, 848,314.98 and 139,087.82

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Solution

The fourth proportional to 565,548.30, 848,314.98 and 139,087.82 is: 208,629.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,548.30 : 848,314.98 = 139,087.82 : x
  2. Step 2: Convert to fraction form
    565,548.30/848,314.98 = 139,087.82/x
  3. Step 3: Cross multiply
    565,548.30x = 848,314.98 × 139,087.82
  4. Step 4: Simplify right side
    565,548.30x = 117,990,276,999.97
  5. Step 5: Solve for x
    x = 117,990,276,999.97/565,548.30
  6. Step 6: Final answer
    x = 208,629.89

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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.