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Finding the Fourth Proportional to 211,005.82, 316,539.87 and 61,226.64

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Solution

The fourth proportional to 211,005.82, 316,539.87 and 61,226.64 is: 91,849.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,005.82 : 316,539.87 = 61,226.64 : x
  2. Step 2: Convert to fraction form
    211,005.82/316,539.87 = 61,226.64/x
  3. Step 3: Cross multiply
    211,005.82x = 316,539.87 × 61,226.64
  4. Step 4: Simplify right side
    211,005.82x = 19,380,672,788.25
  5. Step 5: Solve for x
    x = 19,380,672,788.25/211,005.82
  6. Step 6: Final answer
    x = 91,849.00

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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.