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Finding the Fourth Proportional to 93,366.58, 128,856.77 and 53,086.38

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Solution

The fourth proportional to 93,366.58, 128,856.77 and 53,086.38 is: 73,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,366.58 : 128,856.77 = 53,086.38 : x
  2. Step 2: Convert to fraction form
    93,366.58/128,856.77 = 53,086.38/x
  3. Step 3: Cross multiply
    93,366.58x = 128,856.77 × 53,086.38
  4. Step 4: Simplify right side
    93,366.58x = 6,840,538,813.51
  5. Step 5: Solve for x
    x = 6,840,538,813.51/93,366.58
  6. Step 6: Final answer
    x = 73,265.39

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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.