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Finding the Fourth Proportional to 152,570.30, 210,559.44 and 84,608.56

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Solution

The fourth proportional to 152,570.30, 210,559.44 and 84,608.56 is: 116,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,570.30 : 210,559.44 = 84,608.56 : x
  2. Step 2: Convert to fraction form
    152,570.30/210,559.44 = 84,608.56/x
  3. Step 3: Cross multiply
    152,570.30x = 210,559.44 × 84,608.56
  4. Step 4: Simplify right side
    152,570.30x = 17,815,131,012.81
  5. Step 5: Solve for x
    x = 17,815,131,012.81/152,570.30
  6. Step 6: Final answer
    x = 116,766.70

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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.