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Finding the Fourth Proportional to 355,872,400.80, 533,808,601.20 and 113,559,799.20

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Solution

The fourth proportional to 355,872,400.80, 533,808,601.20 and 113,559,799.20 is: 170,339,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,872,400.80 : 533,808,601.20 = 113,559,799.20 : x
  2. Step 2: Convert to fraction form
    355,872,400.80/533,808,601.20 = 113,559,799.20/x
  3. Step 3: Cross multiply
    355,872,400.80x = 533,808,601.20 × 113,559,799.20
  4. Step 4: Simplify right side
    355,872,400.80x = 60,619,197,563,504,880
  5. Step 5: Solve for x
    x = 60,619,197,563,504,880/355,872,400.80
  6. Step 6: Final answer
    x = 170,339,698.80

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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.