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Finding the Fourth Proportional to 445,573.52, 668,349.18 and 130,033.16

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Solution

The fourth proportional to 445,573.52, 668,349.18 and 130,033.16 is: 195,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,573.52 : 668,349.18 = 130,033.16 : x
  2. Step 2: Convert to fraction form
    445,573.52/668,349.18 = 130,033.16/x
  3. Step 3: Cross multiply
    445,573.52x = 668,349.18 × 130,033.16
  4. Step 4: Simplify right side
    445,573.52x = 86,907,555,858.81
  5. Step 5: Solve for x
    x = 86,907,555,858.81/445,573.52
  6. Step 6: Final answer
    x = 195,046.50

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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.