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Finding the Fourth Proportional to 93,253.50, 128,689.83 and 50,812.04

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Solution

The fourth proportional to 93,253.50, 128,689.83 and 50,812.04 is: 70,120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,253.50 : 128,689.83 = 50,812.04 : x
  2. Step 2: Convert to fraction form
    93,253.50/128,689.83 = 50,812.04/x
  3. Step 3: Cross multiply
    93,253.50x = 128,689.83 × 50,812.04
  4. Step 4: Simplify right side
    93,253.50x = 6,538,993,111.28
  5. Step 5: Solve for x
    x = 6,538,993,111.28/93,253.50
  6. Step 6: Final answer
    x = 70,120.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.