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Finding the Fourth Proportional to 215,736,561.60, 323,604,842.40 and 143,177,150.40

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Solution

The fourth proportional to 215,736,561.60, 323,604,842.40 and 143,177,150.40 is: 214,765,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,736,561.60 : 323,604,842.40 = 143,177,150.40 : x
  2. Step 2: Convert to fraction form
    215,736,561.60/323,604,842.40 = 143,177,150.40/x
  3. Step 3: Cross multiply
    215,736,561.60x = 323,604,842.40 × 143,177,150.40
  4. Step 4: Simplify right side
    215,736,561.60x = 46,332,819,190,473,096
  5. Step 5: Solve for x
    x = 46,332,819,190,473,096/215,736,561.60
  6. Step 6: Final answer
    x = 214,765,725.60

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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.