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Finding the Fourth Proportional to 106,553.52, 147,062.52 and 61,245.36

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Solution

The fourth proportional to 106,553.52, 147,062.52 and 61,245.36 is: 84,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,553.52 : 147,062.52 = 61,245.36 : x
  2. Step 2: Convert to fraction form
    106,553.52/147,062.52 = 61,245.36/x
  3. Step 3: Cross multiply
    106,553.52x = 147,062.52 × 61,245.36
  4. Step 4: Simplify right side
    106,553.52x = 9,006,896,979.91
  5. Step 5: Solve for x
    x = 9,006,896,979.91/106,553.52
  6. Step 6: Final answer
    x = 84,529.32

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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.