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Finding the Fourth Proportional to 228,851.78, 343,193.40 and 79,053.62

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Solution

The fourth proportional to 228,851.78, 343,193.40 and 79,053.62 is: 118,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,851.78 : 343,193.40 = 79,053.62 : x
  2. Step 2: Convert to fraction form
    228,851.78/343,193.40 = 79,053.62/x
  3. Step 3: Cross multiply
    228,851.78x = 343,193.40 × 79,053.62
  4. Step 4: Simplify right side
    228,851.78x = 27,130,680,630.11
  5. Step 5: Solve for x
    x = 27,130,680,630.11/228,851.78
  6. Step 6: Final answer
    x = 118,551.32

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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.