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Finding the Fourth Proportional to 139,860.50, 209,823.96 and 46,366.25

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Solution

The fourth proportional to 139,860.50, 209,823.96 and 46,366.25 is: 69,560.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,860.50 : 209,823.96 = 46,366.25 : x
  2. Step 2: Convert to fraction form
    139,860.50/209,823.96 = 46,366.25/x
  3. Step 3: Cross multiply
    139,860.50x = 209,823.96 × 46,366.25
  4. Step 4: Simplify right side
    139,860.50x = 9,728,750,185.35
  5. Step 5: Solve for x
    x = 9,728,750,185.35/139,860.50
  6. Step 6: Final answer
    x = 69,560.38

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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.