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Finding the Fourth Proportional to 111,624.80, 153,998.64 and 63,852.64

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Solution

The fourth proportional to 111,624.80, 153,998.64 and 63,852.64 is: 88,091.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,624.80 : 153,998.64 = 63,852.64 : x
  2. Step 2: Convert to fraction form
    111,624.80/153,998.64 = 63,852.64/x
  3. Step 3: Cross multiply
    111,624.80x = 153,998.64 × 63,852.64
  4. Step 4: Simplify right side
    111,624.80x = 9,833,219,720.41
  5. Step 5: Solve for x
    x = 9,833,219,720.41/111,624.80
  6. Step 6: Final answer
    x = 88,091.71

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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.