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Finding the Fourth Proportional to 78,855.75, 118,303.07 and 23,451.75

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Solution

The fourth proportional to 78,855.75, 118,303.07 and 23,451.75 is: 35,183.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,855.75 : 118,303.07 = 23,451.75 : x
  2. Step 2: Convert to fraction form
    78,855.75/118,303.07 = 23,451.75/x
  3. Step 3: Cross multiply
    78,855.75x = 118,303.07 × 23,451.75
  4. Step 4: Simplify right side
    78,855.75x = 2,774,413,904.61
  5. Step 5: Solve for x
    x = 2,774,413,904.61/78,855.75
  6. Step 6: Final answer
    x = 35,183.41

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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.