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Finding the Fourth Proportional to 68,703.35, 94,763.20 and 48,328.61

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Solution

The fourth proportional to 68,703.35, 94,763.20 and 48,328.61 is: 66,660.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,703.35 : 94,763.20 = 48,328.61 : x
  2. Step 2: Convert to fraction form
    68,703.35/94,763.20 = 48,328.61/x
  3. Step 3: Cross multiply
    68,703.35x = 94,763.20 × 48,328.61
  4. Step 4: Simplify right side
    68,703.35x = 4,579,773,493.51
  5. Step 5: Solve for x
    x = 4,579,773,493.51/68,703.35
  6. Step 6: Final answer
    x = 66,660.12

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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.