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Finding the Fourth Proportional to 355,385.45, 532,999.56 and 102,611.08

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Solution

The fourth proportional to 355,385.45, 532,999.56 and 102,611.08 is: 153,893.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,385.45 : 532,999.56 = 102,611.08 : x
  2. Step 2: Convert to fraction form
    355,385.45/532,999.56 = 102,611.08/x
  3. Step 3: Cross multiply
    355,385.45x = 532,999.56 × 102,611.08
  4. Step 4: Simplify right side
    355,385.45x = 54,691,659,158.63
  5. Step 5: Solve for x
    x = 54,691,659,158.63/355,385.45
  6. Step 6: Final answer
    x = 153,893.92

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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.