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Finding the Fourth Proportional to 223,153.89, 334,733.55 and 65,385.54

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Solution

The fourth proportional to 223,153.89, 334,733.55 and 65,385.54 is: 98,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,153.89 : 334,733.55 = 65,385.54 : x
  2. Step 2: Convert to fraction form
    223,153.89/334,733.55 = 65,385.54/x
  3. Step 3: Cross multiply
    223,153.89x = 334,733.55 × 65,385.54
  4. Step 4: Simplify right side
    223,153.89x = 21,886,733,922.87
  5. Step 5: Solve for x
    x = 21,886,733,922.87/223,153.89
  6. Step 6: Final answer
    x = 98,079.11

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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.