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Finding the Fourth Proportional to 93,145.20, 139,717.80 and 33,961.20

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Solution

The fourth proportional to 93,145.20, 139,717.80 and 33,961.20 is: 50,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,145.20 : 139,717.80 = 33,961.20 : x
  2. Step 2: Convert to fraction form
    93,145.20/139,717.80 = 33,961.20/x
  3. Step 3: Cross multiply
    93,145.20x = 139,717.80 × 33,961.20
  4. Step 4: Simplify right side
    93,145.20x = 4,744,984,149.36
  5. Step 5: Solve for x
    x = 4,744,984,149.36/93,145.20
  6. Step 6: Final answer
    x = 50,941.80

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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.