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Finding the Fourth Proportional to 360,393.76, 540,619.26 and 107,655.67

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Solution

The fourth proportional to 360,393.76, 540,619.26 and 107,655.67 is: 161,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,393.76 : 540,619.26 = 107,655.67 : x
  2. Step 2: Convert to fraction form
    360,393.76/540,619.26 = 107,655.67/x
  3. Step 3: Cross multiply
    360,393.76x = 540,619.26 × 107,655.67
  4. Step 4: Simplify right side
    360,393.76x = 58,200,728,650.20
  5. Step 5: Solve for x
    x = 58,200,728,650.20/360,393.76
  6. Step 6: Final answer
    x = 161,492.05

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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.