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Finding the Fourth Proportional to 93,492.89, 140,290.36 and 54,126.89

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Solution

The fourth proportional to 93,492.89, 140,290.36 and 54,126.89 is: 81,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,492.89 : 140,290.36 = 54,126.89 : x
  2. Step 2: Convert to fraction form
    93,492.89/140,290.36 = 54,126.89/x
  3. Step 3: Cross multiply
    93,492.89x = 140,290.36 × 54,126.89
  4. Step 4: Simplify right side
    93,492.89x = 7,593,479,911.69
  5. Step 5: Solve for x
    x = 7,593,479,911.69/93,492.89
  6. Step 6: Final answer
    x = 81,219.87

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1.5x scale

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.