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Finding the Fourth Proportional to 117,662.40, 176,590.80 and 54,579.60

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Solution

The fourth proportional to 117,662.40, 176,590.80 and 54,579.60 is: 81,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,662.40 : 176,590.80 = 54,579.60 : x
  2. Step 2: Convert to fraction form
    117,662.40/176,590.80 = 54,579.60/x
  3. Step 3: Cross multiply
    117,662.40x = 176,590.80 × 54,579.60
  4. Step 4: Simplify right side
    117,662.40x = 9,638,255,227.68
  5. Step 5: Solve for x
    x = 9,638,255,227.68/117,662.40
  6. Step 6: Final answer
    x = 81,914.49

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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.