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Finding the Fourth Proportional to 93,366.52, 128,856.68 and 53,086.31

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Solution

The fourth proportional to 93,366.52, 128,856.68 and 53,086.31 is: 73,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,366.52 : 128,856.68 = 53,086.31 : x
  2. Step 2: Convert to fraction form
    93,366.52/128,856.68 = 53,086.31/x
  3. Step 3: Cross multiply
    93,366.52x = 128,856.68 × 53,086.31
  4. Step 4: Simplify right side
    93,366.52x = 6,840,526,114.91
  5. Step 5: Solve for x
    x = 6,840,526,114.91/93,366.52
  6. Step 6: Final answer
    x = 73,265.30

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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.