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Finding the Fourth Proportional to 346,564.63, 519,715.72 and 136,087.75

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Solution

The fourth proportional to 346,564.63, 519,715.72 and 136,087.75 is: 204,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,564.63 : 519,715.72 = 136,087.75 : x
  2. Step 2: Convert to fraction form
    346,564.63/519,715.72 = 136,087.75/x
  3. Step 3: Cross multiply
    346,564.63x = 519,715.72 × 136,087.75
  4. Step 4: Simplify right side
    346,564.63x = 70,726,942,974.43
  5. Step 5: Solve for x
    x = 70,726,942,974.43/346,564.63
  6. Step 6: Final answer
    x = 204,080.10

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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.