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Finding the Fourth Proportional to 93,240.90, 139,860.30 and 55,811.41

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Solution

The fourth proportional to 93,240.90, 139,860.30 and 55,811.41 is: 83,716.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,240.90 : 139,860.30 = 55,811.41 : x
  2. Step 2: Convert to fraction form
    93,240.90/139,860.30 = 55,811.41/x
  3. Step 3: Cross multiply
    93,240.90x = 139,860.30 × 55,811.41
  4. Step 4: Simplify right side
    93,240.90x = 7,805,801,192.38
  5. Step 5: Solve for x
    x = 7,805,801,192.38/93,240.90
  6. Step 6: Final answer
    x = 83,716.50

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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.