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Finding the Fourth Proportional to 93,366.70, 128,856.94 and 53,086.50

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Solution

The fourth proportional to 93,366.70, 128,856.94 and 53,086.50 is: 73,265.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,366.70 : 128,856.94 = 53,086.50 : x
  2. Step 2: Convert to fraction form
    93,366.70/128,856.94 = 53,086.50/x
  3. Step 3: Cross multiply
    93,366.70x = 128,856.94 × 53,086.50
  4. Step 4: Simplify right side
    93,366.70x = 6,840,564,078.03
  5. Step 5: Solve for x
    x = 6,840,564,078.03/93,366.70
  6. Step 6: Final answer
    x = 73,265.56

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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.