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Finding the Fourth Proportional to 447,079.60, 670,619.40 and 114,655.60

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Solution

The fourth proportional to 447,079.60, 670,619.40 and 114,655.60 is: 171,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,079.60 : 670,619.40 = 114,655.60 : x
  2. Step 2: Convert to fraction form
    447,079.60/670,619.40 = 114,655.60/x
  3. Step 3: Cross multiply
    447,079.60x = 670,619.40 × 114,655.60
  4. Step 4: Simplify right side
    447,079.60x = 76,890,269,678.64
  5. Step 5: Solve for x
    x = 76,890,269,678.64/447,079.60
  6. Step 6: Final answer
    x = 171,983.40

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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.