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Finding the Fourth Proportional to 157,770.98, 219,193.73 and 155,879.28

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Solution

The fourth proportional to 157,770.98, 219,193.73 and 155,879.28 is: 216,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,770.98 : 219,193.73 = 155,879.28 : x
  2. Step 2: Convert to fraction form
    157,770.98/219,193.73 = 155,879.28/x
  3. Step 3: Cross multiply
    157,770.98x = 219,193.73 × 155,879.28
  4. Step 4: Simplify right side
    157,770.98x = 34,167,760,033.52
  5. Step 5: Solve for x
    x = 34,167,760,033.52/157,770.98
  6. Step 6: Final answer
    x = 216,565.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.