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Finding the Fourth Proportional to 223,668,900.80, 335,303,896.80 and 87,322,572.80

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Solution

The fourth proportional to 223,668,900.80, 335,303,896.80 and 87,322,572.80 is: 130,905,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,668,900.80 : 335,303,896.80 = 87,322,572.80 : x
  2. Step 2: Convert to fraction form
    223,668,900.80/335,303,896.80 = 87,322,572.80/x
  3. Step 3: Cross multiply
    223,668,900.80x = 335,303,896.80 × 87,322,572.80
  4. Step 4: Simplify right side
    223,668,900.80x = 29,279,598,938,441,688
  5. Step 5: Solve for x
    x = 29,279,598,938,441,688/223,668,900.80
  6. Step 6: Final answer
    x = 130,905,990.21

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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.