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Finding the Fourth Proportional to 103,630.63, 155,445.95 and 33,509.95

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Solution

The fourth proportional to 103,630.63, 155,445.95 and 33,509.95 is: 50,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.63 : 155,445.95 = 33,509.95 : x
  2. Step 2: Convert to fraction form
    103,630.63/155,445.95 = 33,509.95/x
  3. Step 3: Cross multiply
    103,630.63x = 155,445.95 × 33,509.95
  4. Step 4: Simplify right side
    103,630.63x = 5,208,986,012.20
  5. Step 5: Solve for x
    x = 5,208,986,012.20/103,630.63
  6. Step 6: Final answer
    x = 50,264.93

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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.