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Finding the Fourth Proportional to 490,717.56, 736,076.28 and 158,293.56

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Solution

The fourth proportional to 490,717.56, 736,076.28 and 158,293.56 is: 237,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,717.56 : 736,076.28 = 158,293.56 : x
  2. Step 2: Convert to fraction form
    490,717.56/736,076.28 = 158,293.56/x
  3. Step 3: Cross multiply
    490,717.56x = 736,076.28 × 158,293.56
  4. Step 4: Simplify right side
    490,717.56x = 116,516,134,792.76
  5. Step 5: Solve for x
    x = 116,516,134,792.76/490,717.56
  6. Step 6: Final answer
    x = 237,440.32

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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.