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Finding the Fourth Proportional to 313,108.43, 432,130.32 and 175,339.80

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Solution

The fourth proportional to 313,108.43, 432,130.32 and 175,339.80 is: 241,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,108.43 : 432,130.32 = 175,339.80 : x
  2. Step 2: Convert to fraction form
    313,108.43/432,130.32 = 175,339.80/x
  3. Step 3: Cross multiply
    313,108.43x = 432,130.32 × 175,339.80
  4. Step 4: Simplify right side
    313,108.43x = 75,769,643,882.74
  5. Step 5: Solve for x
    x = 75,769,643,882.74/313,108.43
  6. Step 6: Final answer
    x = 241,991.71

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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.