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Finding the Fourth Proportional to 108,803.64, 150,150.06 and 63,509.88

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Solution

The fourth proportional to 108,803.64, 150,150.06 and 63,509.88 is: 87,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,803.64 : 150,150.06 = 63,509.88 : x
  2. Step 2: Convert to fraction form
    108,803.64/150,150.06 = 63,509.88/x
  3. Step 3: Cross multiply
    108,803.64x = 150,150.06 × 63,509.88
  4. Step 4: Simplify right side
    108,803.64x = 9,536,012,292.59
  5. Step 5: Solve for x
    x = 9,536,012,292.59/108,803.64
  6. Step 6: Final answer
    x = 87,644.24

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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.