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Finding the Fourth Proportional to 571,964.42, 857,952.76 and 172,608.78

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Solution

The fourth proportional to 571,964.42, 857,952.76 and 172,608.78 is: 258,915.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,964.42 : 857,952.76 = 172,608.78 : x
  2. Step 2: Convert to fraction form
    571,964.42/857,952.76 = 172,608.78/x
  3. Step 3: Cross multiply
    571,964.42x = 857,952.76 × 172,608.78
  4. Step 4: Simplify right side
    571,964.42x = 148,090,179,201.23
  5. Step 5: Solve for x
    x = 148,090,179,201.23/571,964.42
  6. Step 6: Final answer
    x = 258,915.02

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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.