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Finding the Fourth Proportional to 93,033.68, 139,576.96 and 45,663

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Solution

The fourth proportional to 93,033.68, 139,576.96 and 45,663 is: 68,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,033.68 : 139,576.96 = 45,663 : x
  2. Step 2: Convert to fraction form
    93,033.68/139,576.96 = 45,663/x
  3. Step 3: Cross multiply
    93,033.68x = 139,576.96 × 45,663
  4. Step 4: Simplify right side
    93,033.68x = 6,373,502,724.48
  5. Step 5: Solve for x
    x = 6,373,502,724.48/93,033.68
  6. Step 6: Final answer
    x = 68,507.48

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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.