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Finding the Fourth Proportional to 202,368.72, 303,544.08 and 69,260.88

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Solution

The fourth proportional to 202,368.72, 303,544.08 and 69,260.88 is: 103,888.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,368.72 : 303,544.08 = 69,260.88 : x
  2. Step 2: Convert to fraction form
    202,368.72/303,544.08 = 69,260.88/x
  3. Step 3: Cross multiply
    202,368.72x = 303,544.08 × 69,260.88
  4. Step 4: Simplify right side
    202,368.72x = 21,023,730,099.59
  5. Step 5: Solve for x
    x = 21,023,730,099.59/202,368.72
  6. Step 6: Final answer
    x = 103,888.24

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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.