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Finding the Fourth Proportional to 144,755.76, 216,958.56 and 74,596.80

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Solution

The fourth proportional to 144,755.76, 216,958.56 and 74,596.80 is: 111,804.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,755.76 : 216,958.56 = 74,596.80 : x
  2. Step 2: Convert to fraction form
    144,755.76/216,958.56 = 74,596.80/x
  3. Step 3: Cross multiply
    144,755.76x = 216,958.56 × 74,596.80
  4. Step 4: Simplify right side
    144,755.76x = 16,184,414,308.61
  5. Step 5: Solve for x
    x = 16,184,414,308.61/144,755.76
  6. Step 6: Final answer
    x = 111,804.98

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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.