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Finding the Fourth Proportional to 313,147.80, 432,165.33 and 177,181.74

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Solution

The fourth proportional to 313,147.80, 432,165.33 and 177,181.74 is: 244,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,147.80 : 432,165.33 = 177,181.74 : x
  2. Step 2: Convert to fraction form
    313,147.80/432,165.33 = 177,181.74/x
  3. Step 3: Cross multiply
    313,147.80x = 432,165.33 × 177,181.74
  4. Step 4: Simplify right side
    313,147.80x = 76,571,805,137.07
  5. Step 5: Solve for x
    x = 76,571,805,137.07/313,147.80
  6. Step 6: Final answer
    x = 244,522.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.