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Finding the Fourth Proportional to 117,659.80, 176,511.56 and 38,779.56

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Solution

The fourth proportional to 117,659.80, 176,511.56 and 38,779.56 is: 58,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,659.80 : 176,511.56 = 38,779.56 : x
  2. Step 2: Convert to fraction form
    117,659.80/176,511.56 = 38,779.56/x
  3. Step 3: Cross multiply
    117,659.80x = 176,511.56 × 38,779.56
  4. Step 4: Simplify right side
    117,659.80x = 6,845,040,631.71
  5. Step 5: Solve for x
    x = 6,845,040,631.71/117,659.80
  6. Step 6: Final answer
    x = 58,176.54

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1.5x scale

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.