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Finding the Fourth Proportional to 319,098.51, 478,652.76 and 94,481.73

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Solution

The fourth proportional to 319,098.51, 478,652.76 and 94,481.73 is: 141,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,098.51 : 478,652.76 = 94,481.73 : x
  2. Step 2: Convert to fraction form
    319,098.51/478,652.76 = 94,481.73/x
  3. Step 3: Cross multiply
    319,098.51x = 478,652.76 × 94,481.73
  4. Step 4: Simplify right side
    319,098.51x = 45,223,940,834.07
  5. Step 5: Solve for x
    x = 45,223,940,834.07/319,098.51
  6. Step 6: Final answer
    x = 141,724.07

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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.