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Finding the Fourth Proportional to 223,875.70, 335,813.55 and 74,139.10

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Solution

The fourth proportional to 223,875.70, 335,813.55 and 74,139.10 is: 111,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,875.70 : 335,813.55 = 74,139.10 : x
  2. Step 2: Convert to fraction form
    223,875.70/335,813.55 = 74,139.10/x
  3. Step 3: Cross multiply
    223,875.70x = 335,813.55 × 74,139.10
  4. Step 4: Simplify right side
    223,875.70x = 24,896,914,364.81
  5. Step 5: Solve for x
    x = 24,896,914,364.81/223,875.70
  6. Step 6: Final answer
    x = 111,208.65

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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.