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Finding the Fourth Proportional to 118,899.80, 178,349.46 and 28,941.80

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Solution

The fourth proportional to 118,899.80, 178,349.46 and 28,941.80 is: 43,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,899.80 : 178,349.46 = 28,941.80 : x
  2. Step 2: Convert to fraction form
    118,899.80/178,349.46 = 28,941.80/x
  3. Step 3: Cross multiply
    118,899.80x = 178,349.46 × 28,941.80
  4. Step 4: Simplify right side
    118,899.80x = 5,161,754,401.43
  5. Step 5: Solve for x
    x = 5,161,754,401.43/118,899.80
  6. Step 6: Final answer
    x = 43,412.64

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1.5x scale

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.