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Finding the Fourth Proportional to 122,549.80, 183,824.70 and 69,964.60

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Solution

The fourth proportional to 122,549.80, 183,824.70 and 69,964.60 is: 104,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,549.80 : 183,824.70 = 69,964.60 : x
  2. Step 2: Convert to fraction form
    122,549.80/183,824.70 = 69,964.60/x
  3. Step 3: Cross multiply
    122,549.80x = 183,824.70 × 69,964.60
  4. Step 4: Simplify right side
    122,549.80x = 12,861,221,605.62
  5. Step 5: Solve for x
    x = 12,861,221,605.62/122,549.80
  6. Step 6: Final answer
    x = 104,946.90

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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.