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Finding the Fourth Proportional to 228,686.12, 343,062.39 and 70,927.28

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Solution

The fourth proportional to 228,686.12, 343,062.39 and 70,927.28 is: 106,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,686.12 : 343,062.39 = 70,927.28 : x
  2. Step 2: Convert to fraction form
    228,686.12/343,062.39 = 70,927.28/x
  3. Step 3: Cross multiply
    228,686.12x = 343,062.39 × 70,927.28
  4. Step 4: Simplify right side
    228,686.12x = 24,332,482,193.00
  5. Step 5: Solve for x
    x = 24,332,482,193.00/228,686.12
  6. Step 6: Final answer
    x = 106,401.22

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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.