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Finding the Fourth Proportional to 163,148.85, 225,147.60 and 91,524.60

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Solution

The fourth proportional to 163,148.85, 225,147.60 and 91,524.60 is: 126,305.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,148.85 : 225,147.60 = 91,524.60 : x
  2. Step 2: Convert to fraction form
    163,148.85/225,147.60 = 91,524.60/x
  3. Step 3: Cross multiply
    163,148.85x = 225,147.60 × 91,524.60
  4. Step 4: Simplify right side
    163,148.85x = 20,606,544,030.96
  5. Step 5: Solve for x
    x = 20,606,544,030.96/163,148.85
  6. Step 6: Final answer
    x = 126,305.17

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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.