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Finding the Fourth Proportional to 119,657.86, 179,486.60 and 55,580.96

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Solution

The fourth proportional to 119,657.86, 179,486.60 and 55,580.96 is: 83,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,657.86 : 179,486.60 = 55,580.96 : x
  2. Step 2: Convert to fraction form
    119,657.86/179,486.60 = 55,580.96/x
  3. Step 3: Cross multiply
    119,657.86x = 179,486.60 × 55,580.96
  4. Step 4: Simplify right side
    119,657.86x = 9,976,037,705.95
  5. Step 5: Solve for x
    x = 9,976,037,705.95/119,657.86
  6. Step 6: Final answer
    x = 83,371.35

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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.