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Finding the Fourth Proportional to 211,033.35, 316,566.43 and 61,276.10

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Solution

The fourth proportional to 211,033.35, 316,566.43 and 61,276.10 is: 91,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,033.35 : 316,566.43 = 61,276.10 : x
  2. Step 2: Convert to fraction form
    211,033.35/316,566.43 = 61,276.10/x
  3. Step 3: Cross multiply
    211,033.35x = 316,566.43 × 61,276.10
  4. Step 4: Simplify right side
    211,033.35x = 19,397,954,485.30
  5. Step 5: Solve for x
    x = 19,397,954,485.30/211,033.35
  6. Step 6: Final answer
    x = 91,918.91

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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.