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Finding the Fourth Proportional to 228,705.37, 343,041.58 and 70,929.73

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Solution

The fourth proportional to 228,705.37, 343,041.58 and 70,929.73 is: 106,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,705.37 : 343,041.58 = 70,929.73 : x
  2. Step 2: Convert to fraction form
    228,705.37/343,041.58 = 70,929.73/x
  3. Step 3: Cross multiply
    228,705.37x = 343,041.58 × 70,929.73
  4. Step 4: Simplify right side
    228,705.37x = 24,331,845,236.03
  5. Step 5: Solve for x
    x = 24,331,845,236.03/228,705.37
  6. Step 6: Final answer
    x = 106,389.48

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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.