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Finding the Fourth Proportional to 116,393.50, 160,642.50 and 68,658.58

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Solution

The fourth proportional to 116,393.50, 160,642.50 and 68,658.58 is: 94,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,393.50 : 160,642.50 = 68,658.58 : x
  2. Step 2: Convert to fraction form
    116,393.50/160,642.50 = 68,658.58/x
  3. Step 3: Cross multiply
    116,393.50x = 160,642.50 × 68,658.58
  4. Step 4: Simplify right side
    116,393.50x = 11,029,485,937.65
  5. Step 5: Solve for x
    x = 11,029,485,937.65/116,393.50
  6. Step 6: Final answer
    x = 94,760.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.