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Finding the Fourth Proportional to 128,450.88, 192,594.11 and 61,758.18

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Solution

The fourth proportional to 128,450.88, 192,594.11 and 61,758.18 is: 92,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,450.88 : 192,594.11 = 61,758.18 : x
  2. Step 2: Convert to fraction form
    128,450.88/192,594.11 = 61,758.18/x
  3. Step 3: Cross multiply
    128,450.88x = 192,594.11 × 61,758.18
  4. Step 4: Simplify right side
    128,450.88x = 11,894,261,403.53
  5. Step 5: Solve for x
    x = 11,894,261,403.53/128,450.88
  6. Step 6: Final answer
    x = 92,597.74

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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.