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Finding the Fourth Proportional to 169,942.81, 254,859.64 and 56,065.02

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Solution

The fourth proportional to 169,942.81, 254,859.64 and 56,065.02 is: 84,079.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,942.81 : 254,859.64 = 56,065.02 : x
  2. Step 2: Convert to fraction form
    169,942.81/254,859.64 = 56,065.02/x
  3. Step 3: Cross multiply
    169,942.81x = 254,859.64 × 56,065.02
  4. Step 4: Simplify right side
    169,942.81x = 14,288,710,813.79
  5. Step 5: Solve for x
    x = 14,288,710,813.79/169,942.81
  6. Step 6: Final answer
    x = 84,079.53

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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.