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Finding the Fourth Proportional to 253,487.10, 349,406.52 and 171,790.50

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Solution

The fourth proportional to 253,487.10, 349,406.52 and 171,790.50 is: 236,795.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,487.10 : 349,406.52 = 171,790.50 : x
  2. Step 2: Convert to fraction form
    253,487.10/349,406.52 = 171,790.50/x
  3. Step 3: Cross multiply
    253,487.10x = 349,406.52 × 171,790.50
  4. Step 4: Simplify right side
    253,487.10x = 60,024,720,774.06
  5. Step 5: Solve for x
    x = 60,024,720,774.06/253,487.10
  6. Step 6: Final answer
    x = 236,795.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.