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Finding the Fourth Proportional to 108,964.83, 150,390.12 and 63,648.06

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Solution

The fourth proportional to 108,964.83, 150,390.12 and 63,648.06 is: 87,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,964.83 : 150,390.12 = 63,648.06 : x
  2. Step 2: Convert to fraction form
    108,964.83/150,390.12 = 63,648.06/x
  3. Step 3: Cross multiply
    108,964.83x = 150,390.12 × 63,648.06
  4. Step 4: Simplify right side
    108,964.83x = 9,572,039,381.17
  5. Step 5: Solve for x
    x = 9,572,039,381.17/108,964.83
  6. Step 6: Final answer
    x = 87,845.22

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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.