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Finding the Fourth Proportional to 524,346.88, 786,537.72 and 145,271.42

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Solution

The fourth proportional to 524,346.88, 786,537.72 and 145,271.42 is: 217,911.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,346.88 : 786,537.72 = 145,271.42 : x
  2. Step 2: Convert to fraction form
    524,346.88/786,537.72 = 145,271.42/x
  3. Step 3: Cross multiply
    524,346.88x = 786,537.72 × 145,271.42
  4. Step 4: Simplify right side
    524,346.88x = 114,261,451,467.96
  5. Step 5: Solve for x
    x = 114,261,451,467.96/524,346.88
  6. Step 6: Final answer
    x = 217,911.95

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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.