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Finding the Fourth Proportional to 116,497.28, 174,789.84 and 69,783.68

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Solution

The fourth proportional to 116,497.28, 174,789.84 and 69,783.68 is: 104,701.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,497.28 : 174,789.84 = 69,783.68 : x
  2. Step 2: Convert to fraction form
    116,497.28/174,789.84 = 69,783.68/x
  3. Step 3: Cross multiply
    116,497.28x = 174,789.84 × 69,783.68
  4. Step 4: Simplify right side
    116,497.28x = 12,197,478,261.81
  5. Step 5: Solve for x
    x = 12,197,478,261.81/116,497.28
  6. Step 6: Final answer
    x = 104,701.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.