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Finding the Fourth Proportional to 115,830.72, 173,564.64 and 92,450.88

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Solution

The fourth proportional to 115,830.72, 173,564.64 and 92,450.88 is: 138,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,830.72 : 173,564.64 = 92,450.88 : x
  2. Step 2: Convert to fraction form
    115,830.72/173,564.64 = 92,450.88/x
  3. Step 3: Cross multiply
    115,830.72x = 173,564.64 × 92,450.88
  4. Step 4: Simplify right side
    115,830.72x = 16,046,203,704.88
  5. Step 5: Solve for x
    x = 16,046,203,704.88/115,830.72
  6. Step 6: Final answer
    x = 138,531.50

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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.