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Finding the Fourth Proportional to 93,366.83, 128,857.12 and 53,086.63

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Solution

The fourth proportional to 93,366.83, 128,857.12 and 53,086.63 is: 73,265.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,366.83 : 128,857.12 = 53,086.63 : x
  2. Step 2: Convert to fraction form
    93,366.83/128,857.12 = 53,086.63/x
  3. Step 3: Cross multiply
    93,366.83x = 128,857.12 × 53,086.63
  4. Step 4: Simplify right side
    93,366.83x = 6,840,589,342.59
  5. Step 5: Solve for x
    x = 6,840,589,342.59/93,366.83
  6. Step 6: Final answer
    x = 73,265.74

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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.