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Finding the Fourth Proportional to 136,430.52, 204,673.46 and 42,914.52

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Solution

The fourth proportional to 136,430.52, 204,673.46 and 42,914.52 is: 64,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,430.52 : 204,673.46 = 42,914.52 : x
  2. Step 2: Convert to fraction form
    136,430.52/204,673.46 = 42,914.52/x
  3. Step 3: Cross multiply
    136,430.52x = 204,673.46 × 42,914.52
  4. Step 4: Simplify right side
    136,430.52x = 8,783,463,292.64
  5. Step 5: Solve for x
    x = 8,783,463,292.64/136,430.52
  6. Step 6: Final answer
    x = 64,380.49

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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.