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Finding the Fourth Proportional to 125,253.74, 187,834.04 and 54,186.67

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Solution

The fourth proportional to 125,253.74, 187,834.04 and 54,186.67 is: 81,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,253.74 : 187,834.04 = 54,186.67 : x
  2. Step 2: Convert to fraction form
    125,253.74/187,834.04 = 54,186.67/x
  3. Step 3: Cross multiply
    125,253.74x = 187,834.04 × 54,186.67
  4. Step 4: Simplify right side
    125,253.74x = 10,178,101,307.31
  5. Step 5: Solve for x
    x = 10,178,101,307.31/125,253.74
  6. Step 6: Final answer
    x = 81,259.86

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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.