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Finding the Fourth Proportional to 313,554.42, 432,703.22 and 170,313.21

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Solution

The fourth proportional to 313,554.42, 432,703.22 and 170,313.21 is: 235,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,554.42 : 432,703.22 = 170,313.21 : x
  2. Step 2: Convert to fraction form
    313,554.42/432,703.22 = 170,313.21/x
  3. Step 3: Cross multiply
    313,554.42x = 432,703.22 × 170,313.21
  4. Step 4: Simplify right side
    313,554.42x = 73,695,073,523.97
  5. Step 5: Solve for x
    x = 73,695,073,523.97/313,554.42
  6. Step 6: Final answer
    x = 235,031.21

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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.