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Finding the Fourth Proportional to 348,093.60, 521,449.20 and 190,039.20

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Solution

The fourth proportional to 348,093.60, 521,449.20 and 190,039.20 is: 284,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,093.60 : 521,449.20 = 190,039.20 : x
  2. Step 2: Convert to fraction form
    348,093.60/521,449.20 = 190,039.20/x
  3. Step 3: Cross multiply
    348,093.60x = 521,449.20 × 190,039.20
  4. Step 4: Simplify right side
    348,093.60x = 99,095,788,808.64
  5. Step 5: Solve for x
    x = 99,095,788,808.64/348,093.60
  6. Step 6: Final answer
    x = 284,681.44

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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.