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Finding the Fourth Proportional to 89,901.63, 134,810.73 and 52,472.48

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Solution

The fourth proportional to 89,901.63, 134,810.73 and 52,472.48 is: 78,684.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,901.63 : 134,810.73 = 52,472.48 : x
  2. Step 2: Convert to fraction form
    89,901.63/134,810.73 = 52,472.48/x
  3. Step 3: Cross multiply
    89,901.63x = 134,810.73 × 52,472.48
  4. Step 4: Simplify right side
    89,901.63x = 7,073,852,659.66
  5. Step 5: Solve for x
    x = 7,073,852,659.66/89,901.63
  6. Step 6: Final answer
    x = 78,684.36

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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.