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Finding the Fourth Proportional to 211,023.48, 316,566.48 and 61,265

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Solution

The fourth proportional to 211,023.48, 316,566.48 and 61,265 is: 91,906.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,023.48 : 316,566.48 = 61,265 : x
  2. Step 2: Convert to fraction form
    211,023.48/316,566.48 = 61,265/x
  3. Step 3: Cross multiply
    211,023.48x = 316,566.48 × 61,265
  4. Step 4: Simplify right side
    211,023.48x = 19,394,445,397.20
  5. Step 5: Solve for x
    x = 19,394,445,397.20/211,023.48
  6. Step 6: Final answer
    x = 91,906.58

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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.