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Finding the Fourth Proportional to 353,973.60, 531,574.80 and 188,085.60

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Solution

The fourth proportional to 353,973.60, 531,574.80 and 188,085.60 is: 282,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,973.60 : 531,574.80 = 188,085.60 : x
  2. Step 2: Convert to fraction form
    353,973.60/531,574.80 = 188,085.60/x
  3. Step 3: Cross multiply
    353,973.60x = 531,574.80 × 188,085.60
  4. Step 4: Simplify right side
    353,973.60x = 99,981,565,202.88
  5. Step 5: Solve for x
    x = 99,981,565,202.88/353,973.60
  6. Step 6: Final answer
    x = 282,454.86

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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.