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Finding the Fourth Proportional to 313,362.66, 432,445.68 and 170,122.74

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Solution

The fourth proportional to 313,362.66, 432,445.68 and 170,122.74 is: 234,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,362.66 : 432,445.68 = 170,122.74 : x
  2. Step 2: Convert to fraction form
    313,362.66/432,445.68 = 170,122.74/x
  3. Step 3: Cross multiply
    313,362.66x = 432,445.68 × 170,122.74
  4. Step 4: Simplify right side
    313,362.66x = 73,568,843,982.76
  5. Step 5: Solve for x
    x = 73,568,843,982.76/313,362.66
  6. Step 6: Final answer
    x = 234,772.21

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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.