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Finding the Fourth Proportional to 312,169.93, 430,794.50 and 168,929.97

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Solution

The fourth proportional to 312,169.93, 430,794.50 and 168,929.97 is: 233,123.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,169.93 : 430,794.50 = 168,929.97 : x
  2. Step 2: Convert to fraction form
    312,169.93/430,794.50 = 168,929.97/x
  3. Step 3: Cross multiply
    312,169.93x = 430,794.50 × 168,929.97
  4. Step 4: Simplify right side
    312,169.93x = 72,774,101,337.73
  5. Step 5: Solve for x
    x = 72,774,101,337.73/312,169.93
  6. Step 6: Final answer
    x = 233,123.36

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1.5x scale

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.