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Finding the Fourth Proportional to 373,180.50, 514,989.21 and 212,035.77

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Solution

The fourth proportional to 373,180.50, 514,989.21 and 212,035.77 is: 292,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,180.50 : 514,989.21 = 212,035.77 : x
  2. Step 2: Convert to fraction form
    373,180.50/514,989.21 = 212,035.77/x
  3. Step 3: Cross multiply
    373,180.50x = 514,989.21 × 212,035.77
  4. Step 4: Simplify right side
    373,180.50x = 109,196,133,684.04
  5. Step 5: Solve for x
    x = 109,196,133,684.04/373,180.50
  6. Step 6: Final answer
    x = 292,609.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.