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Finding the Fourth Proportional to 103,617.51, 155,422.62 and 33,495

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Solution

The fourth proportional to 103,617.51, 155,422.62 and 33,495 is: 50,241.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,617.51 : 155,422.62 = 33,495 : x
  2. Step 2: Convert to fraction form
    103,617.51/155,422.62 = 33,495/x
  3. Step 3: Cross multiply
    103,617.51x = 155,422.62 × 33,495
  4. Step 4: Simplify right side
    103,617.51x = 5,205,880,656.90
  5. Step 5: Solve for x
    x = 5,205,880,656.90/103,617.51
  6. Step 6: Final answer
    x = 50,241.32

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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.