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Finding the Fourth Proportional to 326,345.94, 489,518.88 and 101,724.48

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Solution

The fourth proportional to 326,345.94, 489,518.88 and 101,724.48 is: 152,586.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,345.94 : 489,518.88 = 101,724.48 : x
  2. Step 2: Convert to fraction form
    326,345.94/489,518.88 = 101,724.48/x
  3. Step 3: Cross multiply
    326,345.94x = 489,518.88 × 101,724.48
  4. Step 4: Simplify right side
    326,345.94x = 49,796,053,518.18
  5. Step 5: Solve for x
    x = 49,796,053,518.18/326,345.94
  6. Step 6: Final answer
    x = 152,586.71

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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.