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Finding the Fourth Proportional to 169,337.54, 253,828.48 and 56,978.75

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Solution

The fourth proportional to 169,337.54, 253,828.48 and 56,978.75 is: 85,408.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,337.54 : 253,828.48 = 56,978.75 : x
  2. Step 2: Convert to fraction form
    169,337.54/253,828.48 = 56,978.75/x
  3. Step 3: Cross multiply
    169,337.54x = 253,828.48 × 56,978.75
  4. Step 4: Simplify right side
    169,337.54x = 14,462,829,504.80
  5. Step 5: Solve for x
    x = 14,462,829,504.80/169,337.54
  6. Step 6: Final answer
    x = 85,408.29

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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.