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Finding the Fourth Proportional to 315,012.75, 472,519.14 and 93,396.75

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Solution

The fourth proportional to 315,012.75, 472,519.14 and 93,396.75 is: 140,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,012.75 : 472,519.14 = 93,396.75 : x
  2. Step 2: Convert to fraction form
    315,012.75/472,519.14 = 93,396.75/x
  3. Step 3: Cross multiply
    315,012.75x = 472,519.14 × 93,396.75
  4. Step 4: Simplify right side
    315,012.75x = 44,131,751,988.80
  5. Step 5: Solve for x
    x = 44,131,751,988.80/315,012.75
  6. Step 6: Final answer
    x = 140,095.13

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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.