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Finding the Fourth Proportional to 111,696.30, 167,544.45 and 99,449.10

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Solution

The fourth proportional to 111,696.30, 167,544.45 and 99,449.10 is: 149,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,696.30 : 167,544.45 = 99,449.10 : x
  2. Step 2: Convert to fraction form
    111,696.30/167,544.45 = 99,449.10/x
  3. Step 3: Cross multiply
    111,696.30x = 167,544.45 × 99,449.10
  4. Step 4: Simplify right side
    111,696.30x = 16,662,144,762.50
  5. Step 5: Solve for x
    x = 16,662,144,762.50/111,696.30
  6. Step 6: Final answer
    x = 149,173.65

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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.