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Finding the Fourth Proportional to 228,693.78, 343,040.67 and 104,070.42

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Solution

The fourth proportional to 228,693.78, 343,040.67 and 104,070.42 is: 156,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,693.78 : 343,040.67 = 104,070.42 : x
  2. Step 2: Convert to fraction form
    228,693.78/343,040.67 = 104,070.42/x
  3. Step 3: Cross multiply
    228,693.78x = 343,040.67 × 104,070.42
  4. Step 4: Simplify right side
    228,693.78x = 35,700,386,603.98
  5. Step 5: Solve for x
    x = 35,700,386,603.98/228,693.78
  6. Step 6: Final answer
    x = 156,105.63

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1.5x scale

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.