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Finding the Fourth Proportional to 169,346.80, 253,929.46 and 56,989.68

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Solution

The fourth proportional to 169,346.80, 253,929.46 and 56,989.68 is: 85,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,346.80 : 253,929.46 = 56,989.68 : x
  2. Step 2: Convert to fraction form
    169,346.80/253,929.46 = 56,989.68/x
  3. Step 3: Cross multiply
    169,346.80x = 253,929.46 × 56,989.68
  4. Step 4: Simplify right side
    169,346.80x = 14,471,358,667.97
  5. Step 5: Solve for x
    x = 14,471,358,667.97/169,346.80
  6. Step 6: Final answer
    x = 85,453.98

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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.