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Finding the Fourth Proportional to 228,267.71, 342,401.24 and 91,552.49

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Solution

The fourth proportional to 228,267.71, 342,401.24 and 91,552.49 is: 137,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,267.71 : 342,401.24 = 91,552.49 : x
  2. Step 2: Convert to fraction form
    228,267.71/342,401.24 = 91,552.49/x
  3. Step 3: Cross multiply
    228,267.71x = 342,401.24 × 91,552.49
  4. Step 4: Simplify right side
    228,267.71x = 31,347,683,931.32
  5. Step 5: Solve for x
    x = 31,347,683,931.32/228,267.71
  6. Step 6: Final answer
    x = 137,328.60

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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.