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Finding the Fourth Proportional to 111,801.94, 167,702.91 and 76,634.98

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Solution

The fourth proportional to 111,801.94, 167,702.91 and 76,634.98 is: 114,952.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,801.94 : 167,702.91 = 76,634.98 : x
  2. Step 2: Convert to fraction form
    111,801.94/167,702.91 = 76,634.98/x
  3. Step 3: Cross multiply
    111,801.94x = 167,702.91 × 76,634.98
  4. Step 4: Simplify right side
    111,801.94x = 12,851,909,153.79
  5. Step 5: Solve for x
    x = 12,851,909,153.79/111,801.94
  6. Step 6: Final answer
    x = 114,952.47

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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.