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Finding the Fourth Proportional to 315,061.04, 434,866.92 and 179,174.48

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Solution

The fourth proportional to 315,061.04, 434,866.92 and 179,174.48 is: 247,307.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,061.04 : 434,866.92 = 179,174.48 : x
  2. Step 2: Convert to fraction form
    315,061.04/434,866.92 = 179,174.48/x
  3. Step 3: Cross multiply
    315,061.04x = 434,866.92 × 179,174.48
  4. Step 4: Simplify right side
    315,061.04x = 77,917,054,260.20
  5. Step 5: Solve for x
    x = 77,917,054,260.20/315,061.04
  6. Step 6: Final answer
    x = 247,307.81

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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.