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Finding the Fourth Proportional to 314,476.84, 433,977.75 and 171,237.91

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Solution

The fourth proportional to 314,476.84, 433,977.75 and 171,237.91 is: 236,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,476.84 : 433,977.75 = 171,237.91 : x
  2. Step 2: Convert to fraction form
    314,476.84/433,977.75 = 171,237.91/x
  3. Step 3: Cross multiply
    314,476.84x = 433,977.75 × 171,237.91
  4. Step 4: Simplify right side
    314,476.84x = 74,313,442,896.50
  5. Step 5: Solve for x
    x = 74,313,442,896.50/314,476.84
  6. Step 6: Final answer
    x = 236,308.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.