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Finding the Fourth Proportional to 567,842.34, 851,940.90 and 168,485.10

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Solution

The fourth proportional to 567,842.34, 851,940.90 and 168,485.10 is: 252,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,842.34 : 851,940.90 = 168,485.10 : x
  2. Step 2: Convert to fraction form
    567,842.34/851,940.90 = 168,485.10/x
  3. Step 3: Cross multiply
    567,842.34x = 851,940.90 × 168,485.10
  4. Step 4: Simplify right side
    567,842.34x = 143,539,347,730.59
  5. Step 5: Solve for x
    x = 143,539,347,730.59/567,842.34
  6. Step 6: Final answer
    x = 252,780.28

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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.