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Finding the Fourth Proportional to 111,913.58, 167,736.85 and 77,995.94

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Solution

The fourth proportional to 111,913.58, 167,736.85 and 77,995.94 is: 116,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,913.58 : 167,736.85 = 77,995.94 : x
  2. Step 2: Convert to fraction form
    111,913.58/167,736.85 = 77,995.94/x
  3. Step 3: Cross multiply
    111,913.58x = 167,736.85 × 77,995.94
  4. Step 4: Simplify right side
    111,913.58x = 13,082,792,254.71
  5. Step 5: Solve for x
    x = 13,082,792,254.71/111,913.58
  6. Step 6: Final answer
    x = 116,900.84

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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.