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Finding the Fourth Proportional to 353,193.65, 529,790.31 and 103,875.65

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Solution

The fourth proportional to 353,193.65, 529,790.31 and 103,875.65 is: 155,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,193.65 : 529,790.31 = 103,875.65 : x
  2. Step 2: Convert to fraction form
    353,193.65/529,790.31 = 103,875.65/x
  3. Step 3: Cross multiply
    353,193.65x = 529,790.31 × 103,875.65
  4. Step 4: Simplify right side
    353,193.65x = 55,032,312,814.95
  5. Step 5: Solve for x
    x = 55,032,312,814.95/353,193.65
  6. Step 6: Final answer
    x = 155,813.43

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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.