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Finding the Fourth Proportional to 93,878.48, 140,817.60 and 31,592.72

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Solution

The fourth proportional to 93,878.48, 140,817.60 and 31,592.72 is: 47,389.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,878.48 : 140,817.60 = 31,592.72 : x
  2. Step 2: Convert to fraction form
    93,878.48/140,817.60 = 31,592.72/x
  3. Step 3: Cross multiply
    93,878.48x = 140,817.60 × 31,592.72
  4. Step 4: Simplify right side
    93,878.48x = 4,448,811,007.87
  5. Step 5: Solve for x
    x = 4,448,811,007.87/93,878.48
  6. Step 6: Final answer
    x = 47,389.04

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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.