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Finding the Fourth Proportional to 60,117, 90,176.72 and 18,564

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Solution

The fourth proportional to 60,117, 90,176.72 and 18,564 is: 27,846.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,117 : 90,176.72 = 18,564 : x
  2. Step 2: Convert to fraction form
    60,117/90,176.72 = 18,564/x
  3. Step 3: Cross multiply
    60,117x = 90,176.72 × 18,564
  4. Step 4: Simplify right side
    60,117x = 1,674,040,537.26
  5. Step 5: Solve for x
    x = 1,674,040,537.26/60,117
  6. Step 6: Final answer
    x = 27,846.38

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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.