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Finding the Fourth Proportional to 201,800.64, 278,484.96 and 116,966.88

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Solution

The fourth proportional to 201,800.64, 278,484.96 and 116,966.88 is: 161,414.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,800.64 : 278,484.96 = 116,966.88 : x
  2. Step 2: Convert to fraction form
    201,800.64/278,484.96 = 116,966.88/x
  3. Step 3: Cross multiply
    201,800.64x = 278,484.96 × 116,966.88
  4. Step 4: Simplify right side
    201,800.64x = 32,573,516,898.12
  5. Step 5: Solve for x
    x = 32,573,516,898.12/201,800.64
  6. Step 6: Final answer
    x = 161,414.34

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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.