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Finding the Fourth Proportional to 228,352.70, 342,529.05 and 103,693.70

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Solution

The fourth proportional to 228,352.70, 342,529.05 and 103,693.70 is: 155,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,352.70 : 342,529.05 = 103,693.70 : x
  2. Step 2: Convert to fraction form
    228,352.70/342,529.05 = 103,693.70/x
  3. Step 3: Cross multiply
    228,352.70x = 342,529.05 × 103,693.70
  4. Step 4: Simplify right side
    228,352.70x = 35,518,104,551.99
  5. Step 5: Solve for x
    x = 35,518,104,551.99/228,352.70
  6. Step 6: Final answer
    x = 155,540.55

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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.