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Finding the Fourth Proportional to 188,011.44, 259,488.90 and 111,572.70

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Solution

The fourth proportional to 188,011.44, 259,488.90 and 111,572.70 is: 153,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,011.44 : 259,488.90 = 111,572.70 : x
  2. Step 2: Convert to fraction form
    188,011.44/259,488.90 = 111,572.70/x
  3. Step 3: Cross multiply
    188,011.44x = 259,488.90 × 111,572.70
  4. Step 4: Simplify right side
    188,011.44x = 28,951,877,193.03
  5. Step 5: Solve for x
    x = 28,951,877,193.03/188,011.44
  6. Step 6: Final answer
    x = 153,989.98

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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.