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Finding the Fourth Proportional to 114,195.12, 171,488.70 and 70,080.90

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Solution

The fourth proportional to 114,195.12, 171,488.70 and 70,080.90 is: 105,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,195.12 : 171,488.70 = 70,080.90 : x
  2. Step 2: Convert to fraction form
    114,195.12/171,488.70 = 70,080.90/x
  3. Step 3: Cross multiply
    114,195.12x = 171,488.70 × 70,080.90
  4. Step 4: Simplify right side
    114,195.12x = 12,018,082,435.83
  5. Step 5: Solve for x
    x = 12,018,082,435.83/114,195.12
  6. Step 6: Final answer
    x = 105,241.65

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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.