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Finding the Fourth Proportional to 373,121.06, 514,920.98 and 212,003.40

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Solution

The fourth proportional to 373,121.06, 514,920.98 and 212,003.40 is: 292,572.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,121.06 : 514,920.98 = 212,003.40 : x
  2. Step 2: Convert to fraction form
    373,121.06/514,920.98 = 212,003.40/x
  3. Step 3: Cross multiply
    373,121.06x = 514,920.98 × 212,003.40
  4. Step 4: Simplify right side
    373,121.06x = 109,164,997,431.32
  5. Step 5: Solve for x
    x = 109,164,997,431.32/373,121.06
  6. Step 6: Final answer
    x = 292,572.59

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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.