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Finding the Fourth Proportional to 178,688.43, 268,015.95 and 60,360.80

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Solution

The fourth proportional to 178,688.43, 268,015.95 and 60,360.80 is: 90,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,688.43 : 268,015.95 = 60,360.80 : x
  2. Step 2: Convert to fraction form
    178,688.43/268,015.95 = 60,360.80/x
  3. Step 3: Cross multiply
    178,688.43x = 268,015.95 × 60,360.80
  4. Step 4: Simplify right side
    178,688.43x = 16,177,655,814.68
  5. Step 5: Solve for x
    x = 16,177,655,814.68/178,688.43
  6. Step 6: Final answer
    x = 90,535.55

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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.