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Finding the Fourth Proportional to 346,181.80, 518,981.10 and 179,969.80

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Solution

The fourth proportional to 346,181.80, 518,981.10 and 179,969.80 is: 269,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,181.80 : 518,981.10 = 179,969.80 : x
  2. Step 2: Convert to fraction form
    346,181.80/518,981.10 = 179,969.80/x
  3. Step 3: Cross multiply
    346,181.80x = 518,981.10 × 179,969.80
  4. Step 4: Simplify right side
    346,181.80x = 93,400,924,770.78
  5. Step 5: Solve for x
    x = 93,400,924,770.78/346,181.80
  6. Step 6: Final answer
    x = 269,803.11

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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.