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Finding the Fourth Proportional to 571,892.67, 857,845.17 and 172,536.93

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Solution

The fourth proportional to 571,892.67, 857,845.17 and 172,536.93 is: 258,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,892.67 : 857,845.17 = 172,536.93 : x
  2. Step 2: Convert to fraction form
    571,892.67/857,845.17 = 172,536.93/x
  3. Step 3: Cross multiply
    571,892.67x = 857,845.17 × 172,536.93
  4. Step 4: Simplify right side
    571,892.67x = 148,009,972,047.13
  5. Step 5: Solve for x
    x = 148,009,972,047.13/571,892.67
  6. Step 6: Final answer
    x = 258,807.25

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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.