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Finding the Fourth Proportional to 108,754.86, 163,131.96 and 29,869.16

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Solution

The fourth proportional to 108,754.86, 163,131.96 and 29,869.16 is: 44,803.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,754.86 : 163,131.96 = 29,869.16 : x
  2. Step 2: Convert to fraction form
    108,754.86/163,131.96 = 29,869.16/x
  3. Step 3: Cross multiply
    108,754.86x = 163,131.96 × 29,869.16
  4. Step 4: Simplify right side
    108,754.86x = 4,872,613,798.69
  5. Step 5: Solve for x
    x = 4,872,613,798.69/108,754.86
  6. Step 6: Final answer
    x = 44,803.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.