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Finding the Fourth Proportional to 351,284.40, 526,927.86 and 85,044.54

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Solution

The fourth proportional to 351,284.40, 526,927.86 and 85,044.54 is: 127,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,284.40 : 526,927.86 = 85,044.54 : x
  2. Step 2: Convert to fraction form
    351,284.40/526,927.86 = 85,044.54/x
  3. Step 3: Cross multiply
    351,284.40x = 526,927.86 × 85,044.54
  4. Step 4: Simplify right side
    351,284.40x = 44,812,337,466.88
  5. Step 5: Solve for x
    x = 44,812,337,466.88/351,284.40
  6. Step 6: Final answer
    x = 127,567.12

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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.