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Finding the Fourth Proportional to 346,696.30, 520,093.05 and 136,285.30

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Solution

The fourth proportional to 346,696.30, 520,093.05 and 136,285.30 is: 204,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,696.30 : 520,093.05 = 136,285.30 : x
  2. Step 2: Convert to fraction form
    346,696.30/520,093.05 = 136,285.30/x
  3. Step 3: Cross multiply
    346,696.30x = 520,093.05 × 136,285.30
  4. Step 4: Simplify right side
    346,696.30x = 70,881,037,347.17
  5. Step 5: Solve for x
    x = 70,881,037,347.17/346,696.30
  6. Step 6: Final answer
    x = 204,447.05

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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.