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Finding the Fourth Proportional to 317,963.37, 438,784.49 and 174,720.34

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Solution

The fourth proportional to 317,963.37, 438,784.49 and 174,720.34 is: 241,111.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,963.37 : 438,784.49 = 174,720.34 : x
  2. Step 2: Convert to fraction form
    317,963.37/438,784.49 = 174,720.34/x
  3. Step 3: Cross multiply
    317,963.37x = 438,784.49 × 174,720.34
  4. Step 4: Simplify right side
    317,963.37x = 76,664,576,264.81
  5. Step 5: Solve for x
    x = 76,664,576,264.81/317,963.37
  6. Step 6: Final answer
    x = 241,111.34

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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.