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Finding the Fourth Proportional to 111,385.44, 153,714.96 and 63,646.56

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Solution

The fourth proportional to 111,385.44, 153,714.96 and 63,646.56 is: 87,834.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,385.44 : 153,714.96 = 63,646.56 : x
  2. Step 2: Convert to fraction form
    111,385.44/153,714.96 = 63,646.56/x
  3. Step 3: Cross multiply
    111,385.44x = 153,714.96 × 63,646.56
  4. Step 4: Simplify right side
    111,385.44x = 9,783,428,424.54
  5. Step 5: Solve for x
    x = 9,783,428,424.54/111,385.44
  6. Step 6: Final answer
    x = 87,834.00

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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.