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Finding the Fourth Proportional to 93,558.64, 140,359.86 and 63,990.40

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Solution

The fourth proportional to 93,558.64, 140,359.86 and 63,990.40 is: 96,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,558.64 : 140,359.86 = 63,990.40 : x
  2. Step 2: Convert to fraction form
    93,558.64/140,359.86 = 63,990.40/x
  3. Step 3: Cross multiply
    93,558.64x = 140,359.86 × 63,990.40
  4. Step 4: Simplify right side
    93,558.64x = 8,981,683,585.34
  5. Step 5: Solve for x
    x = 8,981,683,585.34/93,558.64
  6. Step 6: Final answer
    x = 96,000.58

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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.