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Finding the Fourth Proportional to 88,309, 132,431.10 and 29,127.16

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Solution

The fourth proportional to 88,309, 132,431.10 and 29,127.16 is: 43,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,309 : 132,431.10 = 29,127.16 : x
  2. Step 2: Convert to fraction form
    88,309/132,431.10 = 29,127.16/x
  3. Step 3: Cross multiply
    88,309x = 132,431.10 × 29,127.16
  4. Step 4: Simplify right side
    88,309x = 3,857,341,838.68
  5. Step 5: Solve for x
    x = 3,857,341,838.68/88,309
  6. Step 6: Final answer
    x = 43,680.05

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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.