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Finding the Fourth Proportional to 176,812.60, 265,235.10 and 71,609.80

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Solution

The fourth proportional to 176,812.60, 265,235.10 and 71,609.80 is: 107,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,812.60 : 265,235.10 = 71,609.80 : x
  2. Step 2: Convert to fraction form
    176,812.60/265,235.10 = 71,609.80/x
  3. Step 3: Cross multiply
    176,812.60x = 265,235.10 × 71,609.80
  4. Step 4: Simplify right side
    176,812.60x = 18,993,432,463.98
  5. Step 5: Solve for x
    x = 18,993,432,463.98/176,812.60
  6. Step 6: Final answer
    x = 107,421.26

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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.