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Finding the Fourth Proportional to 163,816.92, 225,980.64 and 112,740.98

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Solution

The fourth proportional to 163,816.92, 225,980.64 and 112,740.98 is: 155,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,816.92 : 225,980.64 = 112,740.98 : x
  2. Step 2: Convert to fraction form
    163,816.92/225,980.64 = 112,740.98/x
  3. Step 3: Cross multiply
    163,816.92x = 225,980.64 × 112,740.98
  4. Step 4: Simplify right side
    163,816.92x = 25,477,277,684.72
  5. Step 5: Solve for x
    x = 25,477,277,684.72/163,816.92
  6. Step 6: Final answer
    x = 155,522.87

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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.