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Finding the Fourth Proportional to 235,186.80, 352,801.20 and 66,708.72

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Solution

The fourth proportional to 235,186.80, 352,801.20 and 66,708.72 is: 100,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,186.80 : 352,801.20 = 66,708.72 : x
  2. Step 2: Convert to fraction form
    235,186.80/352,801.20 = 66,708.72/x
  3. Step 3: Cross multiply
    235,186.80x = 352,801.20 × 66,708.72
  4. Step 4: Simplify right side
    235,186.80x = 23,534,916,466.46
  5. Step 5: Solve for x
    x = 23,534,916,466.46/235,186.80
  6. Step 6: Final answer
    x = 100,069.04

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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.