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Finding the Fourth Proportional to 372,055.50, 558,083.28 and 109,399.50

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Solution

The fourth proportional to 372,055.50, 558,083.28 and 109,399.50 is: 164,099.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,055.50 : 558,083.28 = 109,399.50 : x
  2. Step 2: Convert to fraction form
    372,055.50/558,083.28 = 109,399.50/x
  3. Step 3: Cross multiply
    372,055.50x = 558,083.28 × 109,399.50
  4. Step 4: Simplify right side
    372,055.50x = 61,054,031,790.36
  5. Step 5: Solve for x
    x = 61,054,031,790.36/372,055.50
  6. Step 6: Final answer
    x = 164,099.26

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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.