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Finding the Fourth Proportional to 115,160.25, 158,926.08 and 64,173.05

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Solution

The fourth proportional to 115,160.25, 158,926.08 and 64,173.05 is: 88,561.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,160.25 : 158,926.08 = 64,173.05 : x
  2. Step 2: Convert to fraction form
    115,160.25/158,926.08 = 64,173.05/x
  3. Step 3: Cross multiply
    115,160.25x = 158,926.08 × 64,173.05
  4. Step 4: Simplify right side
    115,160.25x = 10,198,771,278.14
  5. Step 5: Solve for x
    x = 10,198,771,278.14/115,160.25
  6. Step 6: Final answer
    x = 88,561.56

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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.