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Finding the Fourth Proportional to 93,228.30, 139,827.60 and 30,898.80

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Solution

The fourth proportional to 93,228.30, 139,827.60 and 30,898.80 is: 46,343.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,228.30 : 139,827.60 = 30,898.80 : x
  2. Step 2: Convert to fraction form
    93,228.30/139,827.60 = 30,898.80/x
  3. Step 3: Cross multiply
    93,228.30x = 139,827.60 × 30,898.80
  4. Step 4: Simplify right side
    93,228.30x = 4,320,505,046.88
  5. Step 5: Solve for x
    x = 4,320,505,046.88/93,228.30
  6. Step 6: Final answer
    x = 46,343.28

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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.