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Finding the Fourth Proportional to 111,220.32, 166,852.80 and 48,890.88

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Solution

The fourth proportional to 111,220.32, 166,852.80 and 48,890.88 is: 73,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,220.32 : 166,852.80 = 48,890.88 : x
  2. Step 2: Convert to fraction form
    111,220.32/166,852.80 = 48,890.88/x
  3. Step 3: Cross multiply
    111,220.32x = 166,852.80 × 48,890.88
  4. Step 4: Simplify right side
    111,220.32x = 8,157,580,222.46
  5. Step 5: Solve for x
    x = 8,157,580,222.46/111,220.32
  6. Step 6: Final answer
    x = 73,346.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.