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Finding the Fourth Proportional to 211,216.32, 316,873.92 and 61,459.92

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Solution

The fourth proportional to 211,216.32, 316,873.92 and 61,459.92 is: 92,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,216.32 : 316,873.92 = 61,459.92 : x
  2. Step 2: Convert to fraction form
    211,216.32/316,873.92 = 61,459.92/x
  3. Step 3: Cross multiply
    211,216.32x = 316,873.92 × 61,459.92
  4. Step 4: Simplify right side
    211,216.32x = 19,475,045,773.29
  5. Step 5: Solve for x
    x = 19,475,045,773.29/211,216.32
  6. Step 6: Final answer
    x = 92,204.27

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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.