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Finding the Fourth Proportional to 75,671.54, 104,436.72 and 48,891.95

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Solution

The fourth proportional to 75,671.54, 104,436.72 and 48,891.95 is: 67,477.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,671.54 : 104,436.72 = 48,891.95 : x
  2. Step 2: Convert to fraction form
    75,671.54/104,436.72 = 48,891.95/x
  3. Step 3: Cross multiply
    75,671.54x = 104,436.72 × 48,891.95
  4. Step 4: Simplify right side
    75,671.54x = 5,106,114,892.40
  5. Step 5: Solve for x
    x = 5,106,114,892.40/75,671.54
  6. Step 6: Final answer
    x = 67,477.35

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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.