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Finding the Fourth Proportional to 93,324.60, 139,986.90 and 55,999.80

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Solution

The fourth proportional to 93,324.60, 139,986.90 and 55,999.80 is: 83,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,324.60 : 139,986.90 = 55,999.80 : x
  2. Step 2: Convert to fraction form
    93,324.60/139,986.90 = 55,999.80/x
  3. Step 3: Cross multiply
    93,324.60x = 139,986.90 × 55,999.80
  4. Step 4: Simplify right side
    93,324.60x = 7,839,238,402.62
  5. Step 5: Solve for x
    x = 7,839,238,402.62/93,324.60
  6. Step 6: Final answer
    x = 83,999.70

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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.