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Finding the Fourth Proportional to 103,628.63, 155,442.95 and 33,507.95

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Solution

The fourth proportional to 103,628.63, 155,442.95 and 33,507.95 is: 50,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.63 : 155,442.95 = 33,507.95 : x
  2. Step 2: Convert to fraction form
    103,628.63/155,442.95 = 33,507.95/x
  3. Step 3: Cross multiply
    103,628.63x = 155,442.95 × 33,507.95
  4. Step 4: Simplify right side
    103,628.63x = 5,208,573,651.70
  5. Step 5: Solve for x
    x = 5,208,573,651.70/103,628.63
  6. Step 6: Final answer
    x = 50,261.92

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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.