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Finding the Fourth Proportional to 115,609.68, 159,548.76 and 67,845.60

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Solution

The fourth proportional to 115,609.68, 159,548.76 and 67,845.60 is: 93,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,609.68 : 159,548.76 = 67,845.60 : x
  2. Step 2: Convert to fraction form
    115,609.68/159,548.76 = 67,845.60/x
  3. Step 3: Cross multiply
    115,609.68x = 159,548.76 × 67,845.60
  4. Step 4: Simplify right side
    115,609.68x = 10,824,681,351.46
  5. Step 5: Solve for x
    x = 10,824,681,351.46/115,609.68
  6. Step 6: Final answer
    x = 93,631.27

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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.