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Finding the Fourth Proportional to 373,197.96, 514,994.58 and 212,031.72

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Solution

The fourth proportional to 373,197.96, 514,994.58 and 212,031.72 is: 292,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,197.96 : 514,994.58 = 212,031.72 : x
  2. Step 2: Convert to fraction form
    373,197.96/514,994.58 = 212,031.72/x
  3. Step 3: Cross multiply
    373,197.96x = 514,994.58 × 212,031.72
  4. Step 4: Simplify right side
    373,197.96x = 109,195,186,588.08
  5. Step 5: Solve for x
    x = 109,195,186,588.08/373,197.96
  6. Step 6: Final answer
    x = 292,593.20

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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.