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Finding the Fourth Proportional to 93,972.72, 140,989.80 and 34,812.72

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Solution

The fourth proportional to 93,972.72, 140,989.80 and 34,812.72 is: 52,230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,972.72 : 140,989.80 = 34,812.72 : x
  2. Step 2: Convert to fraction form
    93,972.72/140,989.80 = 34,812.72/x
  3. Step 3: Cross multiply
    93,972.72x = 140,989.80 × 34,812.72
  4. Step 4: Simplify right side
    93,972.72x = 4,908,238,430.26
  5. Step 5: Solve for x
    x = 4,908,238,430.26/93,972.72
  6. Step 6: Final answer
    x = 52,230.46

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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.