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Finding the Fourth Proportional to 123,802.42, 170,849.22 and 67,213.80

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Solution

The fourth proportional to 123,802.42, 170,849.22 and 67,213.80 is: 92,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,802.42 : 170,849.22 = 67,213.80 : x
  2. Step 2: Convert to fraction form
    123,802.42/170,849.22 = 67,213.80/x
  3. Step 3: Cross multiply
    123,802.42x = 170,849.22 × 67,213.80
  4. Step 4: Simplify right side
    123,802.42x = 11,483,425,303.24
  5. Step 5: Solve for x
    x = 11,483,425,303.24/123,802.42
  6. Step 6: Final answer
    x = 92,756.06

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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.