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Finding the Fourth Proportional to 353,186.86, 529,780.27 and 103,868.86

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Solution

The fourth proportional to 353,186.86, 529,780.27 and 103,868.86 is: 155,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,186.86 : 529,780.27 = 103,868.86 : x
  2. Step 2: Convert to fraction form
    353,186.86/529,780.27 = 103,868.86/x
  3. Step 3: Cross multiply
    353,186.86x = 529,780.27 × 103,868.86
  4. Step 4: Simplify right side
    353,186.86x = 55,027,672,695.39
  5. Step 5: Solve for x
    x = 55,027,672,695.39/353,186.86
  6. Step 6: Final answer
    x = 155,803.28

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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.