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Finding the Fourth Proportional to 68,409.93, 102,531.06 and 38,852.64

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Solution

The fourth proportional to 68,409.93, 102,531.06 and 38,852.64 is: 58,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,409.93 : 102,531.06 = 38,852.64 : x
  2. Step 2: Convert to fraction form
    68,409.93/102,531.06 = 38,852.64/x
  3. Step 3: Cross multiply
    68,409.93x = 102,531.06 × 38,852.64
  4. Step 4: Simplify right side
    68,409.93x = 3,983,602,363.00
  5. Step 5: Solve for x
    x = 3,983,602,363.00/68,409.93
  6. Step 6: Final answer
    x = 58,231.35

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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.