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Finding the Fourth Proportional to 101,976.88, 152,980.90 and 52,029.76

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Solution

The fourth proportional to 101,976.88, 152,980.90 and 52,029.76 is: 78,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,976.88 : 152,980.90 = 52,029.76 : x
  2. Step 2: Convert to fraction form
    101,976.88/152,980.90 = 52,029.76/x
  3. Step 3: Cross multiply
    101,976.88x = 152,980.90 × 52,029.76
  4. Step 4: Simplify right side
    101,976.88x = 7,959,559,511.58
  5. Step 5: Solve for x
    x = 7,959,559,511.58/101,976.88
  6. Step 6: Final answer
    x = 78,052.59

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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.