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Finding the Fourth Proportional to 570,431.49, 855,591.53 and 149,707.37

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Solution

The fourth proportional to 570,431.49, 855,591.53 and 149,707.37 is: 224,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,431.49 : 855,591.53 = 149,707.37 : x
  2. Step 2: Convert to fraction form
    570,431.49/855,591.53 = 149,707.37/x
  3. Step 3: Cross multiply
    570,431.49x = 855,591.53 × 149,707.37
  4. Step 4: Simplify right side
    570,431.49x = 128,088,352,724.08
  5. Step 5: Solve for x
    x = 128,088,352,724.08/570,431.49
  6. Step 6: Final answer
    x = 224,546.43

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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.