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Finding the Fourth Proportional to 108,932.48, 163,412.64 and 38,818.88

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Solution

The fourth proportional to 108,932.48, 163,412.64 and 38,818.88 is: 58,233.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,932.48 : 163,412.64 = 38,818.88 : x
  2. Step 2: Convert to fraction form
    108,932.48/163,412.64 = 38,818.88/x
  3. Step 3: Cross multiply
    108,932.48x = 163,412.64 × 38,818.88
  4. Step 4: Simplify right side
    108,932.48x = 6,343,495,662.64
  5. Step 5: Solve for x
    x = 6,343,495,662.64/108,932.48
  6. Step 6: Final answer
    x = 58,233.28

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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.