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Finding the Fourth Proportional to 248,630.87, 372,782.91 and 120,513.24

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Solution

The fourth proportional to 248,630.87, 372,782.91 and 120,513.24 is: 180,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,630.87 : 372,782.91 = 120,513.24 : x
  2. Step 2: Convert to fraction form
    248,630.87/372,782.91 = 120,513.24/x
  3. Step 3: Cross multiply
    248,630.87x = 372,782.91 × 120,513.24
  4. Step 4: Simplify right side
    248,630.87x = 44,925,277,123.22
  5. Step 5: Solve for x
    x = 44,925,277,123.22/248,630.87
  6. Step 6: Final answer
    x = 180,690.67

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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.