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Finding the Fourth Proportional to 152,040.96, 209,815.41 and 84,060.90

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Solution

The fourth proportional to 152,040.96, 209,815.41 and 84,060.90 is: 116,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,040.96 : 209,815.41 = 84,060.90 : x
  2. Step 2: Convert to fraction form
    152,040.96/209,815.41 = 84,060.90/x
  3. Step 3: Cross multiply
    152,040.96x = 209,815.41 × 84,060.90
  4. Step 4: Simplify right side
    152,040.96x = 17,637,272,198.47
  5. Step 5: Solve for x
    x = 17,637,272,198.47/152,040.96
  6. Step 6: Final answer
    x = 116,003.43

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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.