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Finding the Fourth Proportional to 93,149.40, 139,816.80 and 43,240.80

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Solution

The fourth proportional to 93,149.40, 139,816.80 and 43,240.80 is: 64,904.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,149.40 : 139,816.80 = 43,240.80 : x
  2. Step 2: Convert to fraction form
    93,149.40/139,816.80 = 43,240.80/x
  3. Step 3: Cross multiply
    93,149.40x = 139,816.80 × 43,240.80
  4. Step 4: Simplify right side
    93,149.40x = 6,045,790,285.44
  5. Step 5: Solve for x
    x = 6,045,790,285.44/93,149.40
  6. Step 6: Final answer
    x = 64,904.23

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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.