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Finding the Fourth Proportional to 211,480.84, 317,304.29 and 93,069.12

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Solution

The fourth proportional to 211,480.84, 317,304.29 and 93,069.12 is: 139,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,480.84 : 317,304.29 = 93,069.12 : x
  2. Step 2: Convert to fraction form
    211,480.84/317,304.29 = 93,069.12/x
  3. Step 3: Cross multiply
    211,480.84x = 317,304.29 × 93,069.12
  4. Step 4: Simplify right side
    211,480.84x = 29,531,231,042.52
  5. Step 5: Solve for x
    x = 29,531,231,042.52/211,480.84
  6. Step 6: Final answer
    x = 139,640.22

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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.