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Finding the Fourth Proportional to 341,858.61, 512,631.99 and 142,059.96

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Solution

The fourth proportional to 341,858.61, 512,631.99 and 142,059.96 is: 213,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,858.61 : 512,631.99 = 142,059.96 : x
  2. Step 2: Convert to fraction form
    341,858.61/512,631.99 = 142,059.96/x
  3. Step 3: Cross multiply
    341,858.61x = 512,631.99 × 142,059.96
  4. Step 4: Simplify right side
    341,858.61x = 72,824,479,994.12
  5. Step 5: Solve for x
    x = 72,824,479,994.12/341,858.61
  6. Step 6: Final answer
    x = 213,025.15

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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.