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Finding the Fourth Proportional to 202,248.72, 303,408.72 and 69,097.68

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Solution

The fourth proportional to 202,248.72, 303,408.72 and 69,097.68 is: 103,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,248.72 : 303,408.72 = 69,097.68 : x
  2. Step 2: Convert to fraction form
    202,248.72/303,408.72 = 69,097.68/x
  3. Step 3: Cross multiply
    202,248.72x = 303,408.72 × 69,097.68
  4. Step 4: Simplify right side
    202,248.72x = 20,964,838,643.77
  5. Step 5: Solve for x
    x = 20,964,838,643.77/202,248.72
  6. Step 6: Final answer
    x = 103,658.70

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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.