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Finding the Fourth Proportional to 158,605.40, 237,906.48 and 53,423.66

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Solution

The fourth proportional to 158,605.40, 237,906.48 and 53,423.66 is: 80,134.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,605.40 : 237,906.48 = 53,423.66 : x
  2. Step 2: Convert to fraction form
    158,605.40/237,906.48 = 53,423.66/x
  3. Step 3: Cross multiply
    158,605.40x = 237,906.48 × 53,423.66
  4. Step 4: Simplify right side
    158,605.40x = 12,709,834,899.32
  5. Step 5: Solve for x
    x = 12,709,834,899.32/158,605.40
  6. Step 6: Final answer
    x = 80,134.94

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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.