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Finding the Fourth Proportional to 127,741.07, 191,611.61 and 48,879.47

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Solution

The fourth proportional to 127,741.07, 191,611.61 and 48,879.47 is: 73,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,741.07 : 191,611.61 = 48,879.47 : x
  2. Step 2: Convert to fraction form
    127,741.07/191,611.61 = 48,879.47/x
  3. Step 3: Cross multiply
    127,741.07x = 191,611.61 × 48,879.47
  4. Step 4: Simplify right side
    127,741.07x = 9,365,874,360.58
  5. Step 5: Solve for x
    x = 9,365,874,360.58/127,741.07
  6. Step 6: Final answer
    x = 73,319.21

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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.