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Finding the Fourth Proportional to 452,500.40, 678,318.60 and 168,114.80

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Solution

The fourth proportional to 452,500.40, 678,318.60 and 168,114.80 is: 252,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,500.40 : 678,318.60 = 168,114.80 : x
  2. Step 2: Convert to fraction form
    452,500.40/678,318.60 = 168,114.80/x
  3. Step 3: Cross multiply
    452,500.40x = 678,318.60 × 168,114.80
  4. Step 4: Simplify right side
    452,500.40x = 114,035,395,775.28
  5. Step 5: Solve for x
    x = 114,035,395,775.28/452,500.40
  6. Step 6: Final answer
    x = 252,011.70

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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.