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Finding the Fourth Proportional to 116,627.80, 174,941.70 and 80,858.20

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Solution

The fourth proportional to 116,627.80, 174,941.70 and 80,858.20 is: 121,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,627.80 : 174,941.70 = 80,858.20 : x
  2. Step 2: Convert to fraction form
    116,627.80/174,941.70 = 80,858.20/x
  3. Step 3: Cross multiply
    116,627.80x = 174,941.70 × 80,858.20
  4. Step 4: Simplify right side
    116,627.80x = 14,145,470,966.94
  5. Step 5: Solve for x
    x = 14,145,470,966.94/116,627.80
  6. Step 6: Final answer
    x = 121,287.30

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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.