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Finding the Fourth Proportional to 167,436.80, 251,155.20 and 56,628.80

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Solution

The fourth proportional to 167,436.80, 251,155.20 and 56,628.80 is: 84,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,436.80 : 251,155.20 = 56,628.80 : x
  2. Step 2: Convert to fraction form
    167,436.80/251,155.20 = 56,628.80/x
  3. Step 3: Cross multiply
    167,436.80x = 251,155.20 × 56,628.80
  4. Step 4: Simplify right side
    167,436.80x = 14,222,617,589.76
  5. Step 5: Solve for x
    x = 14,222,617,589.76/167,436.80
  6. Step 6: Final answer
    x = 84,943.20

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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.