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Finding the Fourth Proportional to 103,225.80, 154,838.70 and 33,112.20

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Solution

The fourth proportional to 103,225.80, 154,838.70 and 33,112.20 is: 49,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,225.80 : 154,838.70 = 33,112.20 : x
  2. Step 2: Convert to fraction form
    103,225.80/154,838.70 = 33,112.20/x
  3. Step 3: Cross multiply
    103,225.80x = 154,838.70 × 33,112.20
  4. Step 4: Simplify right side
    103,225.80x = 5,127,050,002.14
  5. Step 5: Solve for x
    x = 5,127,050,002.14/103,225.80
  6. Step 6: Final answer
    x = 49,668.30

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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.