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Finding the Fourth Proportional to 111,101.76, 153,327.20 and 63,364.32

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Solution

The fourth proportional to 111,101.76, 153,327.20 and 63,364.32 is: 87,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,101.76 : 153,327.20 = 63,364.32 : x
  2. Step 2: Convert to fraction form
    111,101.76/153,327.20 = 63,364.32/x
  3. Step 3: Cross multiply
    111,101.76x = 153,327.20 × 63,364.32
  4. Step 4: Simplify right side
    111,101.76x = 9,715,473,765.50
  5. Step 5: Solve for x
    x = 9,715,473,765.50/111,101.76
  6. Step 6: Final answer
    x = 87,446.62

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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.