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Finding the Fourth Proportional to 103,070.80, 154,606.20 and 50,582.80

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Solution

The fourth proportional to 103,070.80, 154,606.20 and 50,582.80 is: 75,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,070.80 : 154,606.20 = 50,582.80 : x
  2. Step 2: Convert to fraction form
    103,070.80/154,606.20 = 50,582.80/x
  3. Step 3: Cross multiply
    103,070.80x = 154,606.20 × 50,582.80
  4. Step 4: Simplify right side
    103,070.80x = 7,820,414,493.36
  5. Step 5: Solve for x
    x = 7,820,414,493.36/103,070.80
  6. Step 6: Final answer
    x = 75,874.20

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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.