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Finding the Fourth Proportional to 349,335.45, 482,133.87 and 196,386.26

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Solution

The fourth proportional to 349,335.45, 482,133.87 and 196,386.26 is: 271,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,335.45 : 482,133.87 = 196,386.26 : x
  2. Step 2: Convert to fraction form
    349,335.45/482,133.87 = 196,386.26/x
  3. Step 3: Cross multiply
    349,335.45x = 482,133.87 × 196,386.26
  4. Step 4: Simplify right side
    349,335.45x = 94,684,465,137.96
  5. Step 5: Solve for x
    x = 94,684,465,137.96/349,335.45
  6. Step 6: Final answer
    x = 271,041.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.