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Finding the Fourth Proportional to 108,127.28, 162,274.44 and 55,582.64

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Solution

The fourth proportional to 108,127.28, 162,274.44 and 55,582.64 is: 83,416.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,127.28 : 162,274.44 = 55,582.64 : x
  2. Step 2: Convert to fraction form
    108,127.28/162,274.44 = 55,582.64/x
  3. Step 3: Cross multiply
    108,127.28x = 162,274.44 × 55,582.64
  4. Step 4: Simplify right side
    108,127.28x = 9,019,641,779.72
  5. Step 5: Solve for x
    x = 9,019,641,779.72/108,127.28
  6. Step 6: Final answer
    x = 83,416.89

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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.