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Finding the Fourth Proportional to 211,146.62, 316,750.82 and 61,367.40

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Solution

The fourth proportional to 211,146.62, 316,750.82 and 61,367.40 is: 92,060.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,146.62 : 316,750.82 = 61,367.40 : x
  2. Step 2: Convert to fraction form
    211,146.62/316,750.82 = 61,367.40/x
  3. Step 3: Cross multiply
    211,146.62x = 316,750.82 × 61,367.40
  4. Step 4: Simplify right side
    211,146.62x = 19,438,173,964.43
  5. Step 5: Solve for x
    x = 19,438,173,964.43/211,146.62
  6. Step 6: Final answer
    x = 92,060.08

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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.