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Finding the Fourth Proportional to 208,061.70, 312,092.64 and 50,290.14

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Solution

The fourth proportional to 208,061.70, 312,092.64 and 50,290.14 is: 75,435.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,061.70 : 312,092.64 = 50,290.14 : x
  2. Step 2: Convert to fraction form
    208,061.70/312,092.64 = 50,290.14/x
  3. Step 3: Cross multiply
    208,061.70x = 312,092.64 × 50,290.14
  4. Step 4: Simplify right side
    208,061.70x = 15,695,182,558.57
  5. Step 5: Solve for x
    x = 15,695,182,558.57/208,061.70
  6. Step 6: Final answer
    x = 75,435.23

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1.5x scale

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.