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Finding the Fourth Proportional to 144,775.48, 217,163.28 and 39,586.48

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Solution

The fourth proportional to 144,775.48, 217,163.28 and 39,586.48 is: 59,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,775.48 : 217,163.28 = 39,586.48 : x
  2. Step 2: Convert to fraction form
    144,775.48/217,163.28 = 39,586.48/x
  3. Step 3: Cross multiply
    144,775.48x = 217,163.28 × 39,586.48
  4. Step 4: Simplify right side
    144,775.48x = 8,596,729,840.45
  5. Step 5: Solve for x
    x = 8,596,729,840.45/144,775.48
  6. Step 6: Final answer
    x = 59,379.74

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1.5x scale

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.