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Finding the Fourth Proportional to 571,895.67, 857,849.67 and 172,539.93

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Solution

The fourth proportional to 571,895.67, 857,849.67 and 172,539.93 is: 258,811.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,895.67 : 857,849.67 = 172,539.93 : x
  2. Step 2: Convert to fraction form
    571,895.67/857,849.67 = 172,539.93/x
  3. Step 3: Cross multiply
    571,895.67x = 857,849.67 × 172,539.93
  4. Step 4: Simplify right side
    571,895.67x = 148,013,322,012.32
  5. Step 5: Solve for x
    x = 148,013,322,012.32/571,895.67
  6. Step 6: Final answer
    x = 258,811.75

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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.