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Finding the Fourth Proportional to 556,832.23, 835,338.81 and 172,491.33

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Solution

The fourth proportional to 556,832.23, 835,338.81 and 172,491.33 is: 258,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,832.23 : 835,338.81 = 172,491.33 : x
  2. Step 2: Convert to fraction form
    556,832.23/835,338.81 = 172,491.33/x
  3. Step 3: Cross multiply
    556,832.23x = 835,338.81 × 172,491.33
  4. Step 4: Simplify right side
    556,832.23x = 144,088,702,337.52
  5. Step 5: Solve for x
    x = 144,088,702,337.52/556,832.23
  6. Step 6: Final answer
    x = 258,765.02

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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.