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Finding the Fourth Proportional to 373,189.96, 514,983.54 and 212,023.72

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Solution

The fourth proportional to 373,189.96, 514,983.54 and 212,023.72 is: 292,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,189.96 : 514,983.54 = 212,023.72 : x
  2. Step 2: Convert to fraction form
    373,189.96/514,983.54 = 212,023.72/x
  3. Step 3: Cross multiply
    373,189.96x = 514,983.54 × 212,023.72
  4. Step 4: Simplify right side
    373,189.96x = 109,188,725,889.57
  5. Step 5: Solve for x
    x = 109,188,725,889.57/373,189.96
  6. Step 6: Final answer
    x = 292,582.16

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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.