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Finding the Fourth Proportional to 290,464.60, 435,696.90 and 93,472.60

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Solution

The fourth proportional to 290,464.60, 435,696.90 and 93,472.60 is: 140,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,464.60 : 435,696.90 = 93,472.60 : x
  2. Step 2: Convert to fraction form
    290,464.60/435,696.90 = 93,472.60/x
  3. Step 3: Cross multiply
    290,464.60x = 435,696.90 × 93,472.60
  4. Step 4: Simplify right side
    290,464.60x = 40,725,722,054.94
  5. Step 5: Solve for x
    x = 40,725,722,054.94/290,464.60
  6. Step 6: Final answer
    x = 140,208.90

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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.