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Finding the Fourth Proportional to 171,259.08, 256,890.54 and 76,494.08

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Solution

The fourth proportional to 171,259.08, 256,890.54 and 76,494.08 is: 114,741.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,259.08 : 256,890.54 = 76,494.08 : x
  2. Step 2: Convert to fraction form
    171,259.08/256,890.54 = 76,494.08/x
  3. Step 3: Cross multiply
    171,259.08x = 256,890.54 × 76,494.08
  4. Step 4: Simplify right side
    171,259.08x = 19,650,605,518.00
  5. Step 5: Solve for x
    x = 19,650,605,518.00/171,259.08
  6. Step 6: Final answer
    x = 114,741.98

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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.