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Finding the Fourth Proportional to 313,170.91, 469,752.27 and 76,515.64

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Solution

The fourth proportional to 313,170.91, 469,752.27 and 76,515.64 is: 114,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,170.91 : 469,752.27 = 76,515.64 : x
  2. Step 2: Convert to fraction form
    313,170.91/469,752.27 = 76,515.64/x
  3. Step 3: Cross multiply
    313,170.91x = 469,752.27 × 76,515.64
  4. Step 4: Simplify right side
    313,170.91x = 35,943,395,580.50
  5. Step 5: Solve for x
    x = 35,943,395,580.50/313,170.91
  6. Step 6: Final answer
    x = 114,772.46

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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.