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Finding the Fourth Proportional to 73,879.40, 103,693.60 and 73,879.40

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Solution

The fourth proportional to 73,879.40, 103,693.60 and 73,879.40 is: 103,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,879.40 : 103,693.60 = 73,879.40 : x
  2. Step 2: Convert to fraction form
    73,879.40/103,693.60 = 73,879.40/x
  3. Step 3: Cross multiply
    73,879.40x = 103,693.60 × 73,879.40
  4. Step 4: Simplify right side
    73,879.40x = 7,660,820,951.84
  5. Step 5: Solve for x
    x = 7,660,820,951.84/73,879.40
  6. Step 6: Final answer
    x = 103,693.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.