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Finding the Fourth Proportional to 60,424.70, 90,527.70 and 51,676.70

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Solution

The fourth proportional to 60,424.70, 90,527.70 and 51,676.70 is: 77,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,424.70 : 90,527.70 = 51,676.70 : x
  2. Step 2: Convert to fraction form
    60,424.70/90,527.70 = 51,676.70/x
  3. Step 3: Cross multiply
    60,424.70x = 90,527.70 × 51,676.70
  4. Step 4: Simplify right side
    60,424.70x = 4,678,172,794.59
  5. Step 5: Solve for x
    x = 4,678,172,794.59/60,424.70
  6. Step 6: Final answer
    x = 77,421.53

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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.