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Finding the Fourth Proportional to 125,812.34, 188,524.68 and 58,302.72

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Solution

The fourth proportional to 125,812.34, 188,524.68 and 58,302.72 is: 87,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,812.34 : 188,524.68 = 58,302.72 : x
  2. Step 2: Convert to fraction form
    125,812.34/188,524.68 = 58,302.72/x
  3. Step 3: Cross multiply
    125,812.34x = 188,524.68 × 58,302.72
  4. Step 4: Simplify right side
    125,812.34x = 10,991,501,631.13
  5. Step 5: Solve for x
    x = 10,991,501,631.13/125,812.34
  6. Step 6: Final answer
    x = 87,364.26

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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.