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Finding the Fourth Proportional to 223,955.90, 335,981.23 and 74,187.70

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Solution

The fourth proportional to 223,955.90, 335,981.23 and 74,187.70 is: 111,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,955.90 : 335,981.23 = 74,187.70 : x
  2. Step 2: Convert to fraction form
    223,955.90/335,981.23 = 74,187.70/x
  3. Step 3: Cross multiply
    223,955.90x = 335,981.23 × 74,187.70
  4. Step 4: Simplify right side
    223,955.90x = 24,925,674,696.87
  5. Step 5: Solve for x
    x = 24,925,674,696.87/223,955.90
  6. Step 6: Final answer
    x = 111,297.25

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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.