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Finding the Fourth Proportional to 178,011.76, 245,662.46 and 97,439.34

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Solution

The fourth proportional to 178,011.76, 245,662.46 and 97,439.34 is: 134,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,011.76 : 245,662.46 = 97,439.34 : x
  2. Step 2: Convert to fraction form
    178,011.76/245,662.46 = 97,439.34/x
  3. Step 3: Cross multiply
    178,011.76x = 245,662.46 × 97,439.34
  4. Step 4: Simplify right side
    178,011.76x = 23,937,187,965.18
  5. Step 5: Solve for x
    x = 23,937,187,965.18/178,011.76
  6. Step 6: Final answer
    x = 134,469.70

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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.