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Finding the Fourth Proportional to 245,868.56, 368,569.56 and 88,015.76

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Solution

The fourth proportional to 245,868.56, 368,569.56 and 88,015.76 is: 131,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,868.56 : 368,569.56 = 88,015.76 : x
  2. Step 2: Convert to fraction form
    245,868.56/368,569.56 = 88,015.76/x
  3. Step 3: Cross multiply
    245,868.56x = 368,569.56 × 88,015.76
  4. Step 4: Simplify right side
    245,868.56x = 32,439,929,936.27
  5. Step 5: Solve for x
    x = 32,439,929,936.27/245,868.56
  6. Step 6: Final answer
    x = 131,940.13

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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.