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Finding the Fourth Proportional to 68,675.94, 102,870.54 and 43,703.10

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Solution

The fourth proportional to 68,675.94, 102,870.54 and 43,703.10 is: 65,463.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,675.94 : 102,870.54 = 43,703.10 : x
  2. Step 2: Convert to fraction form
    68,675.94/102,870.54 = 43,703.10/x
  3. Step 3: Cross multiply
    68,675.94x = 102,870.54 × 43,703.10
  4. Step 4: Simplify right side
    68,675.94x = 4,495,761,496.67
  5. Step 5: Solve for x
    x = 4,495,761,496.67/68,675.94
  6. Step 6: Final answer
    x = 65,463.41

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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.