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Finding the Fourth Proportional to 78,914.56, 118,370.64 and 23,510.56

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Solution

The fourth proportional to 78,914.56, 118,370.64 and 23,510.56 is: 35,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,914.56 : 118,370.64 = 23,510.56 : x
  2. Step 2: Convert to fraction form
    78,914.56/118,370.64 = 23,510.56/x
  3. Step 3: Cross multiply
    78,914.56x = 118,370.64 × 23,510.56
  4. Step 4: Simplify right side
    78,914.56x = 2,782,960,033.96
  5. Step 5: Solve for x
    x = 2,782,960,033.96/78,914.56
  6. Step 6: Final answer
    x = 35,265.48

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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.