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Finding the Fourth Proportional to 169,209, 253,817.58 and 56,890.68

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Solution

The fourth proportional to 169,209, 253,817.58 and 56,890.68 is: 85,337.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,209 : 253,817.58 = 56,890.68 : x
  2. Step 2: Convert to fraction form
    169,209/253,817.58 = 56,890.68/x
  3. Step 3: Cross multiply
    169,209x = 253,817.58 × 56,890.68
  4. Step 4: Simplify right side
    169,209x = 14,439,854,722.15
  5. Step 5: Solve for x
    x = 14,439,854,722.15/169,209
  6. Step 6: Final answer
    x = 85,337.39

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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.