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Finding the Fourth Proportional to 114,658.50, 158,243.28 and 69,336.80

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Solution

The fourth proportional to 114,658.50, 158,243.28 and 69,336.80 is: 95,693.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,658.50 : 158,243.28 = 69,336.80 : x
  2. Step 2: Convert to fraction form
    114,658.50/158,243.28 = 69,336.80/x
  3. Step 3: Cross multiply
    114,658.50x = 158,243.28 × 69,336.80
  4. Step 4: Simplify right side
    114,658.50x = 10,972,082,656.70
  5. Step 5: Solve for x
    x = 10,972,082,656.70/114,658.50
  6. Step 6: Final answer
    x = 95,693.58

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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.