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Finding the Fourth Proportional to 93,223.38, 139,709.93 and 51,039.80

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Solution

The fourth proportional to 93,223.38, 139,709.93 and 51,039.80 is: 76,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,223.38 : 139,709.93 = 51,039.80 : x
  2. Step 2: Convert to fraction form
    93,223.38/139,709.93 = 51,039.80/x
  3. Step 3: Cross multiply
    93,223.38x = 139,709.93 × 51,039.80
  4. Step 4: Simplify right side
    93,223.38x = 7,130,766,742.48
  5. Step 5: Solve for x
    x = 7,130,766,742.48/93,223.38
  6. Step 6: Final answer
    x = 76,491.18

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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.