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Finding the Fourth Proportional to 125,186.34, 187,810.23 and 36,440.64

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Solution

The fourth proportional to 125,186.34, 187,810.23 and 36,440.64 is: 54,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,186.34 : 187,810.23 = 36,440.64 : x
  2. Step 2: Convert to fraction form
    125,186.34/187,810.23 = 36,440.64/x
  3. Step 3: Cross multiply
    125,186.34x = 187,810.23 × 36,440.64
  4. Step 4: Simplify right side
    125,186.34x = 6,843,924,979.75
  5. Step 5: Solve for x
    x = 6,843,924,979.75/125,186.34
  6. Step 6: Final answer
    x = 54,669.90

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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.