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Finding the Fourth Proportional to 93,885.90, 140,569.65 and 73,149.90

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Solution

The fourth proportional to 93,885.90, 140,569.65 and 73,149.90 is: 109,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,885.90 : 140,569.65 = 73,149.90 : x
  2. Step 2: Convert to fraction form
    93,885.90/140,569.65 = 73,149.90/x
  3. Step 3: Cross multiply
    93,885.90x = 140,569.65 × 73,149.90
  4. Step 4: Simplify right side
    93,885.90x = 10,282,655,840.54
  5. Step 5: Solve for x
    x = 10,282,655,840.54/93,885.90
  6. Step 6: Final answer
    x = 109,522.90

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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.