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Finding the Fourth Proportional to 93,243.75, 139,864.57 and 55,814.28

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Solution

The fourth proportional to 93,243.75, 139,864.57 and 55,814.28 is: 83,720.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,243.75 : 139,864.57 = 55,814.28 : x
  2. Step 2: Convert to fraction form
    93,243.75/139,864.57 = 55,814.28/x
  3. Step 3: Cross multiply
    93,243.75x = 139,864.57 × 55,814.28
  4. Step 4: Simplify right side
    93,243.75x = 7,806,440,272.06
  5. Step 5: Solve for x
    x = 7,806,440,272.06/93,243.75
  6. Step 6: Final answer
    x = 83,720.79

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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.