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Finding the Fourth Proportional to 245,436.84, 368,155.74 and 67,944.38

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Solution

The fourth proportional to 245,436.84, 368,155.74 and 67,944.38 is: 101,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,436.84 : 368,155.74 = 67,944.38 : x
  2. Step 2: Convert to fraction form
    245,436.84/368,155.74 = 67,944.38/x
  3. Step 3: Cross multiply
    245,436.84x = 368,155.74 × 67,944.38
  4. Step 4: Simplify right side
    245,436.84x = 25,014,111,656.96
  5. Step 5: Solve for x
    x = 25,014,111,656.96/245,436.84
  6. Step 6: Final answer
    x = 101,916.70

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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.