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Finding the Fourth Proportional to 371,710.88, 557,482.26 and 171,921.64

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Solution

The fourth proportional to 371,710.88, 557,482.26 and 171,921.64 is: 257,843.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,710.88 : 557,482.26 = 171,921.64 : x
  2. Step 2: Convert to fraction form
    371,710.88/557,482.26 = 171,921.64/x
  3. Step 3: Cross multiply
    371,710.88x = 557,482.26 × 171,921.64
  4. Step 4: Simplify right side
    371,710.88x = 95,843,264,410.11
  5. Step 5: Solve for x
    x = 95,843,264,410.11/371,710.88
  6. Step 6: Final answer
    x = 257,843.58

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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.