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Finding the Fourth Proportional to 262,678.92, 362,496.60 and 155,287.68

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Solution

The fourth proportional to 262,678.92, 362,496.60 and 155,287.68 is: 214,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,678.92 : 362,496.60 = 155,287.68 : x
  2. Step 2: Convert to fraction form
    262,678.92/362,496.60 = 155,287.68/x
  3. Step 3: Cross multiply
    262,678.92x = 362,496.60 × 155,287.68
  4. Step 4: Simplify right side
    262,678.92x = 56,291,256,021.89
  5. Step 5: Solve for x
    x = 56,291,256,021.89/262,678.92
  6. Step 6: Final answer
    x = 214,296.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.