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Finding the Fourth Proportional to 146,885.88, 202,703.79 and 79,817.88

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Solution

The fourth proportional to 146,885.88, 202,703.79 and 79,817.88 is: 110,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,885.88 : 202,703.79 = 79,817.88 : x
  2. Step 2: Convert to fraction form
    146,885.88/202,703.79 = 79,817.88/x
  3. Step 3: Cross multiply
    146,885.88x = 202,703.79 × 79,817.88
  4. Step 4: Simplify right side
    146,885.88x = 16,179,386,785.77
  5. Step 5: Solve for x
    x = 16,179,386,785.77/146,885.88
  6. Step 6: Final answer
    x = 110,149.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.