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Finding the Fourth Proportional to 571,714.61, 857,575.55 and 172,353.83

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Solution

The fourth proportional to 571,714.61, 857,575.55 and 172,353.83 is: 258,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,714.61 : 857,575.55 = 172,353.83 : x
  2. Step 2: Convert to fraction form
    571,714.61/857,575.55 = 172,353.83/x
  3. Step 3: Cross multiply
    571,714.61x = 857,575.55 × 172,353.83
  4. Step 4: Simplify right side
    571,714.61x = 147,806,426,699.86
  5. Step 5: Solve for x
    x = 147,806,426,699.86/571,714.61
  6. Step 6: Final answer
    x = 258,531.84

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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.