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Finding the Fourth Proportional to 229,061.40, 343,851.30 and 135,619.80

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Solution

The fourth proportional to 229,061.40, 343,851.30 and 135,619.80 is: 203,583.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,061.40 : 343,851.30 = 135,619.80 : x
  2. Step 2: Convert to fraction form
    229,061.40/343,851.30 = 135,619.80/x
  3. Step 3: Cross multiply
    229,061.40x = 343,851.30 × 135,619.80
  4. Step 4: Simplify right side
    229,061.40x = 46,633,044,535.74
  5. Step 5: Solve for x
    x = 46,633,044,535.74/229,061.40
  6. Step 6: Final answer
    x = 203,583.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.