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Finding the Fourth Proportional to 104,787.83, 144,601.32 and 57,038.33

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Solution

The fourth proportional to 104,787.83, 144,601.32 and 57,038.33 is: 78,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,787.83 : 144,601.32 = 57,038.33 : x
  2. Step 2: Convert to fraction form
    104,787.83/144,601.32 = 57,038.33/x
  3. Step 3: Cross multiply
    104,787.83x = 144,601.32 × 57,038.33
  4. Step 4: Simplify right side
    104,787.83x = 8,247,817,808.60
  5. Step 5: Solve for x
    x = 8,247,817,808.60/104,787.83
  6. Step 6: Final answer
    x = 78,709.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.