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Finding the Fourth Proportional to 163,153.82, 225,150.93 and 91,533.81

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Solution

The fourth proportional to 163,153.82, 225,150.93 and 91,533.81 is: 126,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,153.82 : 225,150.93 = 91,533.81 : x
  2. Step 2: Convert to fraction form
    163,153.82/225,150.93 = 91,533.81/x
  3. Step 3: Cross multiply
    163,153.82x = 225,150.93 × 91,533.81
  4. Step 4: Simplify right side
    163,153.82x = 20,608,922,447.94
  5. Step 5: Solve for x
    x = 20,608,922,447.94/163,153.82
  6. Step 6: Final answer
    x = 126,315.91

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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.