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Finding the Fourth Proportional to 156,956.60, 235,434.90 and 57,229.40

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Solution

The fourth proportional to 156,956.60, 235,434.90 and 57,229.40 is: 85,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,956.60 : 235,434.90 = 57,229.40 : x
  2. Step 2: Convert to fraction form
    156,956.60/235,434.90 = 57,229.40/x
  3. Step 3: Cross multiply
    156,956.60x = 235,434.90 × 57,229.40
  4. Step 4: Simplify right side
    156,956.60x = 13,473,798,066.06
  5. Step 5: Solve for x
    x = 13,473,798,066.06/156,956.60
  6. Step 6: Final answer
    x = 85,844.10

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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.