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Finding the Fourth Proportional to 346,401, 519,616.62 and 109,761.12

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Solution

The fourth proportional to 346,401, 519,616.62 and 109,761.12 is: 164,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,401 : 519,616.62 = 109,761.12 : x
  2. Step 2: Convert to fraction form
    346,401/519,616.62 = 109,761.12/x
  3. Step 3: Cross multiply
    346,401x = 519,616.62 × 109,761.12
  4. Step 4: Simplify right side
    346,401x = 57,033,702,181.81
  5. Step 5: Solve for x
    x = 57,033,702,181.81/346,401
  6. Step 6: Final answer
    x = 164,646.47

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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.