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Finding the Fourth Proportional to 103,210.86, 154,830.90 and 33,073.80

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Solution

The fourth proportional to 103,210.86, 154,830.90 and 33,073.80 is: 49,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,210.86 : 154,830.90 = 33,073.80 : x
  2. Step 2: Convert to fraction form
    103,210.86/154,830.90 = 33,073.80/x
  3. Step 3: Cross multiply
    103,210.86x = 154,830.90 × 33,073.80
  4. Step 4: Simplify right side
    103,210.86x = 5,120,846,220.42
  5. Step 5: Solve for x
    x = 5,120,846,220.42/103,210.86
  6. Step 6: Final answer
    x = 49,615.38

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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.