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Finding the Fourth Proportional to 115,960.75, 160,026.44 and 64,973.58

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Solution

The fourth proportional to 115,960.75, 160,026.44 and 64,973.58 is: 89,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,960.75 : 160,026.44 = 64,973.58 : x
  2. Step 2: Convert to fraction form
    115,960.75/160,026.44 = 64,973.58/x
  3. Step 3: Cross multiply
    115,960.75x = 160,026.44 × 64,973.58
  4. Step 4: Simplify right side
    115,960.75x = 10,397,489,776.49
  5. Step 5: Solve for x
    x = 10,397,489,776.49/115,960.75
  6. Step 6: Final answer
    x = 89,663.87

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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.