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Finding the Fourth Proportional to 157,362.96, 236,086.56 and 68,623.68

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Solution

The fourth proportional to 157,362.96, 236,086.56 and 68,623.68 is: 102,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,362.96 : 236,086.56 = 68,623.68 : x
  2. Step 2: Convert to fraction form
    157,362.96/236,086.56 = 68,623.68/x
  3. Step 3: Cross multiply
    157,362.96x = 236,086.56 × 68,623.68
  4. Step 4: Simplify right side
    157,362.96x = 16,201,128,545.74
  5. Step 5: Solve for x
    x = 16,201,128,545.74/157,362.96
  6. Step 6: Final answer
    x = 102,953.89

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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.