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Finding the Fourth Proportional to 565,548.14, 848,314.80 and 139,087.65

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Solution

The fourth proportional to 565,548.14, 848,314.80 and 139,087.65 is: 208,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,548.14 : 848,314.80 = 139,087.65 : x
  2. Step 2: Convert to fraction form
    565,548.14/848,314.80 = 139,087.65/x
  3. Step 3: Cross multiply
    565,548.14x = 848,314.80 × 139,087.65
  4. Step 4: Simplify right side
    565,548.14x = 117,990,111,992.22
  5. Step 5: Solve for x
    x = 117,990,111,992.22/565,548.14
  6. Step 6: Final answer
    x = 208,629.65

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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.