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Finding the Fourth Proportional to 103,343.90, 155,037.45 and 33,230.30

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Solution

The fourth proportional to 103,343.90, 155,037.45 and 33,230.30 is: 49,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,343.90 : 155,037.45 = 33,230.30 : x
  2. Step 2: Convert to fraction form
    103,343.90/155,037.45 = 33,230.30/x
  3. Step 3: Cross multiply
    103,343.90x = 155,037.45 × 33,230.30
  4. Step 4: Simplify right side
    103,343.90x = 5,151,940,974.74
  5. Step 5: Solve for x
    x = 5,151,940,974.74/103,343.90
  6. Step 6: Final answer
    x = 49,852.40

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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.