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Finding the Fourth Proportional to 115,980.74, 160,045.34 and 64,297.33

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Solution

The fourth proportional to 115,980.74, 160,045.34 and 64,297.33 is: 88,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,980.74 : 160,045.34 = 64,297.33 : x
  2. Step 2: Convert to fraction form
    115,980.74/160,045.34 = 64,297.33/x
  3. Step 3: Cross multiply
    115,980.74x = 160,045.34 × 64,297.33
  4. Step 4: Simplify right side
    115,980.74x = 10,290,488,311.98
  5. Step 5: Solve for x
    x = 10,290,488,311.98/115,980.74
  6. Step 6: Final answer
    x = 88,725.83

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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.