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Finding the Fourth Proportional to 237,628.80, 356,430.24 and 79,840.80

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Solution

The fourth proportional to 237,628.80, 356,430.24 and 79,840.80 is: 119,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,628.80 : 356,430.24 = 79,840.80 : x
  2. Step 2: Convert to fraction form
    237,628.80/356,430.24 = 79,840.80/x
  3. Step 3: Cross multiply
    237,628.80x = 356,430.24 × 79,840.80
  4. Step 4: Simplify right side
    237,628.80x = 28,457,675,505.79
  5. Step 5: Solve for x
    x = 28,457,675,505.79/237,628.80
  6. Step 6: Final answer
    x = 119,756.85

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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.