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Finding the Fourth Proportional to 103,665.70, 155,459.49 and 33,526.18

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Solution

The fourth proportional to 103,665.70, 155,459.49 and 33,526.18 is: 50,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.70 : 155,459.49 = 33,526.18 : x
  2. Step 2: Convert to fraction form
    103,665.70/155,459.49 = 33,526.18/x
  3. Step 3: Cross multiply
    103,665.70x = 155,459.49 × 33,526.18
  4. Step 4: Simplify right side
    103,665.70x = 5,211,962,844.45
  5. Step 5: Solve for x
    x = 5,211,962,844.45/103,665.70
  6. Step 6: Final answer
    x = 50,276.64

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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.