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Finding the Fourth Proportional to 104,063.52, 143,669.52 and 68,316.06

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Solution

The fourth proportional to 104,063.52, 143,669.52 and 68,316.06 is: 94,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,063.52 : 143,669.52 = 68,316.06 : x
  2. Step 2: Convert to fraction form
    104,063.52/143,669.52 = 68,316.06/x
  3. Step 3: Cross multiply
    104,063.52x = 143,669.52 × 68,316.06
  4. Step 4: Simplify right side
    104,063.52x = 9,814,935,548.49
  5. Step 5: Solve for x
    x = 9,814,935,548.49/104,063.52
  6. Step 6: Final answer
    x = 94,316.77

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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.