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Finding the Fourth Proportional to 355,175.50, 532,855.60 and 105,857.50

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Solution

The fourth proportional to 355,175.50, 532,855.60 and 105,857.50 is: 158,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,175.50 : 532,855.60 = 105,857.50 : x
  2. Step 2: Convert to fraction form
    355,175.50/532,855.60 = 105,857.50/x
  3. Step 3: Cross multiply
    355,175.50x = 532,855.60 × 105,857.50
  4. Step 4: Simplify right side
    355,175.50x = 56,406,761,677
  5. Step 5: Solve for x
    x = 56,406,761,677/355,175.50
  6. Step 6: Final answer
    x = 158,813.77

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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.