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Finding the Fourth Proportional to 313,271.68, 432,315.36 and 170,031.73

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Solution

The fourth proportional to 313,271.68, 432,315.36 and 170,031.73 is: 234,644.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,271.68 : 432,315.36 = 170,031.73 : x
  2. Step 2: Convert to fraction form
    313,271.68/432,315.36 = 170,031.73/x
  3. Step 3: Cross multiply
    313,271.68x = 432,315.36 × 170,031.73
  4. Step 4: Simplify right side
    313,271.68x = 73,507,328,566.37
  5. Step 5: Solve for x
    x = 73,507,328,566.37/313,271.68
  6. Step 6: Final answer
    x = 234,644.03

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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.