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Finding the Fourth Proportional to 202,637.64, 303,962.61 and 69,515.97

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Solution

The fourth proportional to 202,637.64, 303,962.61 and 69,515.97 is: 104,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,637.64 : 303,962.61 = 69,515.97 : x
  2. Step 2: Convert to fraction form
    202,637.64/303,962.61 = 69,515.97/x
  3. Step 3: Cross multiply
    202,637.64x = 303,962.61 × 69,515.97
  4. Step 4: Simplify right side
    202,637.64x = 21,130,255,677.88
  5. Step 5: Solve for x
    x = 21,130,255,677.88/202,637.64
  6. Step 6: Final answer
    x = 104,276.06

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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.