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Finding the Fourth Proportional to 93,893.12, 140,633.28 and 88,717.28

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Solution

The fourth proportional to 93,893.12, 140,633.28 and 88,717.28 is: 132,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,893.12 : 140,633.28 = 88,717.28 : x
  2. Step 2: Convert to fraction form
    93,893.12/140,633.28 = 88,717.28/x
  3. Step 3: Cross multiply
    93,893.12x = 140,633.28 × 88,717.28
  4. Step 4: Simplify right side
    93,893.12x = 12,476,602,079.08
  5. Step 5: Solve for x
    x = 12,476,602,079.08/93,893.12
  6. Step 6: Final answer
    x = 132,880.90

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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.