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Finding the Fourth Proportional to 313,762.61, 432,995.76 and 170,522.66

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Solution

The fourth proportional to 313,762.61, 432,995.76 and 170,522.66 is: 235,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,762.61 : 432,995.76 = 170,522.66 : x
  2. Step 2: Convert to fraction form
    313,762.61/432,995.76 = 170,522.66/x
  3. Step 3: Cross multiply
    313,762.61x = 432,995.76 × 170,522.66
  4. Step 4: Simplify right side
    313,762.61x = 73,835,589,846.41
  5. Step 5: Solve for x
    x = 73,835,589,846.41/313,762.61
  6. Step 6: Final answer
    x = 235,323.10

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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.