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Finding the Fourth Proportional to 211,253.99, 316,932.93 and 61,495.57

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Solution

The fourth proportional to 211,253.99, 316,932.93 and 61,495.57 is: 92,258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,253.99 : 316,932.93 = 61,495.57 : x
  2. Step 2: Convert to fraction form
    211,253.99/316,932.93 = 61,495.57/x
  3. Step 3: Cross multiply
    211,253.99x = 316,932.93 × 61,495.57
  4. Step 4: Simplify right side
    211,253.99x = 19,489,971,182.12
  5. Step 5: Solve for x
    x = 19,489,971,182.12/211,253.99
  6. Step 6: Final answer
    x = 92,258.48

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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.