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Finding the Fourth Proportional to 524,659.48, 786,990.47 and 145,600.54

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Solution

The fourth proportional to 524,659.48, 786,990.47 and 145,600.54 is: 218,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,659.48 : 786,990.47 = 145,600.54 : x
  2. Step 2: Convert to fraction form
    524,659.48/786,990.47 = 145,600.54/x
  3. Step 3: Cross multiply
    524,659.48x = 786,990.47 × 145,600.54
  4. Step 4: Simplify right side
    524,659.48x = 114,586,234,711.38
  5. Step 5: Solve for x
    x = 114,586,234,711.38/524,659.48
  6. Step 6: Final answer
    x = 218,401.15

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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.