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Finding the Fourth Proportional to 79,030.80, 118,546.20 and 56,998.80

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Solution

The fourth proportional to 79,030.80, 118,546.20 and 56,998.80 is: 85,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,030.80 : 118,546.20 = 56,998.80 : x
  2. Step 2: Convert to fraction form
    79,030.80/118,546.20 = 56,998.80/x
  3. Step 3: Cross multiply
    79,030.80x = 118,546.20 × 56,998.80
  4. Step 4: Simplify right side
    79,030.80x = 6,756,991,144.56
  5. Step 5: Solve for x
    x = 6,756,991,144.56/79,030.80
  6. Step 6: Final answer
    x = 85,498.20

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1.5x scale

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.