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Finding the Fourth Proportional to 108,776.52, 163,066.37 and 38,639.43

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Solution

The fourth proportional to 108,776.52, 163,066.37 and 38,639.43 is: 57,924.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,776.52 : 163,066.37 = 38,639.43 : x
  2. Step 2: Convert to fraction form
    108,776.52/163,066.37 = 38,639.43/x
  3. Step 3: Cross multiply
    108,776.52x = 163,066.37 × 38,639.43
  4. Step 4: Simplify right side
    108,776.52x = 6,300,791,395.77
  5. Step 5: Solve for x
    x = 6,300,791,395.77/108,776.52
  6. Step 6: Final answer
    x = 57,924.19

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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.