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Finding the Fourth Proportional to 228,114.80, 342,172.20 and 134,802.80

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Solution

The fourth proportional to 228,114.80, 342,172.20 and 134,802.80 is: 202,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,114.80 : 342,172.20 = 134,802.80 : x
  2. Step 2: Convert to fraction form
    228,114.80/342,172.20 = 134,802.80/x
  3. Step 3: Cross multiply
    228,114.80x = 342,172.20 × 134,802.80
  4. Step 4: Simplify right side
    228,114.80x = 46,125,770,642.16
  5. Step 5: Solve for x
    x = 46,125,770,642.16/228,114.80
  6. Step 6: Final answer
    x = 202,204.20

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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.