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Finding the Fourth Proportional to 565,539.14, 848,301.30 and 139,078.65

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Solution

The fourth proportional to 565,539.14, 848,301.30 and 139,078.65 is: 208,616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,539.14 : 848,301.30 = 139,078.65 : x
  2. Step 2: Convert to fraction form
    565,539.14/848,301.30 = 139,078.65/x
  3. Step 3: Cross multiply
    565,539.14x = 848,301.30 × 139,078.65
  4. Step 4: Simplify right side
    565,539.14x = 117,980,599,597.25
  5. Step 5: Solve for x
    x = 117,980,599,597.25/565,539.14
  6. Step 6: Final answer
    x = 208,616.15

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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.