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Finding the Fourth Proportional to 202,645.11, 303,973.86 and 69,523.50

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Solution

The fourth proportional to 202,645.11, 303,973.86 and 69,523.50 is: 104,287.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,645.11 : 303,973.86 = 69,523.50 : x
  2. Step 2: Convert to fraction form
    202,645.11/303,973.86 = 69,523.50/x
  3. Step 3: Cross multiply
    202,645.11x = 303,973.86 × 69,523.50
  4. Step 4: Simplify right side
    202,645.11x = 21,133,326,655.71
  5. Step 5: Solve for x
    x = 21,133,326,655.71/202,645.11
  6. Step 6: Final answer
    x = 104,287.38

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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.