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Finding the Fourth Proportional to 267,181.58, 400,798.69 and 77,643.60

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Solution

The fourth proportional to 267,181.58, 400,798.69 and 77,643.60 is: 116,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,181.58 : 400,798.69 = 77,643.60 : x
  2. Step 2: Convert to fraction form
    267,181.58/400,798.69 = 77,643.60/x
  3. Step 3: Cross multiply
    267,181.58x = 400,798.69 × 77,643.60
  4. Step 4: Simplify right side
    267,181.58x = 31,119,453,166.88
  5. Step 5: Solve for x
    x = 31,119,453,166.88/267,181.58
  6. Step 6: Final answer
    x = 116,473.05

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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.