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Finding the Fourth Proportional to 117,725.60, 176,588.40 and 71,069.60

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Solution

The fourth proportional to 117,725.60, 176,588.40 and 71,069.60 is: 106,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,725.60 : 176,588.40 = 71,069.60 : x
  2. Step 2: Convert to fraction form
    117,725.60/176,588.40 = 71,069.60/x
  3. Step 3: Cross multiply
    117,725.60x = 176,588.40 × 71,069.60
  4. Step 4: Simplify right side
    117,725.60x = 12,550,066,952.64
  5. Step 5: Solve for x
    x = 12,550,066,952.64/117,725.60
  6. Step 6: Final answer
    x = 106,604.40

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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.