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Finding the Fourth Proportional to 351,269.15, 526,905.08 and 85,029.23

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Solution

The fourth proportional to 351,269.15, 526,905.08 and 85,029.23 is: 127,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,269.15 : 526,905.08 = 85,029.23 : x
  2. Step 2: Convert to fraction form
    351,269.15/526,905.08 = 85,029.23/x
  3. Step 3: Cross multiply
    351,269.15x = 526,905.08 × 85,029.23
  4. Step 4: Simplify right side
    351,269.15x = 44,802,330,175.82
  5. Step 5: Solve for x
    x = 44,802,330,175.82/351,269.15
  6. Step 6: Final answer
    x = 127,544.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.