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Finding the Fourth Proportional to 115,677.99, 173,516.72 and 31,450.40

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Solution

The fourth proportional to 115,677.99, 173,516.72 and 31,450.40 is: 47,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,677.99 : 173,516.72 = 31,450.40 : x
  2. Step 2: Convert to fraction form
    115,677.99/173,516.72 = 31,450.40/x
  3. Step 3: Cross multiply
    115,677.99x = 173,516.72 × 31,450.40
  4. Step 4: Simplify right side
    115,677.99x = 5,457,169,225.85
  5. Step 5: Solve for x
    x = 5,457,169,225.85/115,677.99
  6. Step 6: Final answer
    x = 47,175.52

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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.