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Finding the Fourth Proportional to 876,111.84, 1,314,168.84 and 211,263.84

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Solution

The fourth proportional to 876,111.84, 1,314,168.84 and 211,263.84 is: 316,896.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,111.84 : 1,314,168.84 = 211,263.84 : x
  2. Step 2: Convert to fraction form
    876,111.84/1,314,168.84 = 211,263.84/x
  3. Step 3: Cross multiply
    876,111.84x = 1,314,168.84 × 211,263.84
  4. Step 4: Simplify right side
    876,111.84x = 277,636,355,546.75
  5. Step 5: Solve for x
    x = 277,636,355,546.75/876,111.84
  6. Step 6: Final answer
    x = 316,896.02

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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.