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Finding the Fourth Proportional to 93,140.27, 139,693.76 and 39,862.18

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Solution

The fourth proportional to 93,140.27, 139,693.76 and 39,862.18 is: 59,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,140.27 : 139,693.76 = 39,862.18 : x
  2. Step 2: Convert to fraction form
    93,140.27/139,693.76 = 39,862.18/x
  3. Step 3: Cross multiply
    93,140.27x = 139,693.76 × 39,862.18
  4. Step 4: Simplify right side
    93,140.27x = 5,568,497,806.00
  5. Step 5: Solve for x
    x = 5,568,497,806.00/93,140.27
  6. Step 6: Final answer
    x = 59,786.15

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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.