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Finding the Fourth Proportional to 114,087.78, 171,087.84 and 39,193.92

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Solution

The fourth proportional to 114,087.78, 171,087.84 and 39,193.92 is: 58,775.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,087.78 : 171,087.84 = 39,193.92 : x
  2. Step 2: Convert to fraction form
    114,087.78/171,087.84 = 39,193.92/x
  3. Step 3: Cross multiply
    114,087.78x = 171,087.84 × 39,193.92
  4. Step 4: Simplify right side
    114,087.78x = 6,705,603,113.93
  5. Step 5: Solve for x
    x = 6,705,603,113.93/114,087.78
  6. Step 6: Final answer
    x = 58,775.82

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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.