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Finding the Fourth Proportional to 374,774.85, 517,106.43 and 229,611.31

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Solution

The fourth proportional to 374,774.85, 517,106.43 and 229,611.31 is: 316,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,774.85 : 517,106.43 = 229,611.31 : x
  2. Step 2: Convert to fraction form
    374,774.85/517,106.43 = 229,611.31/x
  3. Step 3: Cross multiply
    374,774.85x = 517,106.43 × 229,611.31
  4. Step 4: Simplify right side
    374,774.85x = 118,733,483,508.96
  5. Step 5: Solve for x
    x = 118,733,483,508.96/374,774.85
  6. Step 6: Final answer
    x = 316,812.84

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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.