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Finding the Fourth Proportional to 452,467.42, 678,700.90 and 115,507.96

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Solution

The fourth proportional to 452,467.42, 678,700.90 and 115,507.96 is: 173,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,467.42 : 678,700.90 = 115,507.96 : x
  2. Step 2: Convert to fraction form
    452,467.42/678,700.90 = 115,507.96/x
  3. Step 3: Cross multiply
    452,467.42x = 678,700.90 × 115,507.96
  4. Step 4: Simplify right side
    452,467.42x = 78,395,354,423.64
  5. Step 5: Solve for x
    x = 78,395,354,423.64/452,467.42
  6. Step 6: Final answer
    x = 173,261.88

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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.