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Finding the Fourth Proportional to 228,425.56, 342,671.18 and 70,666.31

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Solution

The fourth proportional to 228,425.56, 342,671.18 and 70,666.31 is: 106,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,425.56 : 342,671.18 = 70,666.31 : x
  2. Step 2: Convert to fraction form
    228,425.56/342,671.18 = 70,666.31/x
  3. Step 3: Cross multiply
    228,425.56x = 342,671.18 × 70,666.31
  4. Step 4: Simplify right side
    228,425.56x = 24,215,308,337.29
  5. Step 5: Solve for x
    x = 24,215,308,337.29/228,425.56
  6. Step 6: Final answer
    x = 106,009.63

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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.