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Finding the Fourth Proportional to 93,557.64, 140,358.36 and 63,989.40

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Solution

The fourth proportional to 93,557.64, 140,358.36 and 63,989.40 is: 95,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,557.64 : 140,358.36 = 63,989.40 : x
  2. Step 2: Convert to fraction form
    93,557.64/140,358.36 = 63,989.40/x
  3. Step 3: Cross multiply
    93,557.64x = 140,358.36 × 63,989.40
  4. Step 4: Simplify right side
    93,557.64x = 8,981,447,241.38
  5. Step 5: Solve for x
    x = 8,981,447,241.38/93,557.64
  6. Step 6: Final answer
    x = 95,999.08

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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.