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Finding the Fourth Proportional to 152,605.56, 210,591.90 and 84,622.80

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Solution

The fourth proportional to 152,605.56, 210,591.90 and 84,622.80 is: 116,777.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,605.56 : 210,591.90 = 84,622.80 : x
  2. Step 2: Convert to fraction form
    152,605.56/210,591.90 = 84,622.80/x
  3. Step 3: Cross multiply
    152,605.56x = 210,591.90 × 84,622.80
  4. Step 4: Simplify right side
    152,605.56x = 17,820,876,235.32
  5. Step 5: Solve for x
    x = 17,820,876,235.32/152,605.56
  6. Step 6: Final answer
    x = 116,777.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.