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Finding the Fourth Proportional to 56,150.70, 77,484.65 and 30,651.99

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Solution

The fourth proportional to 56,150.70, 77,484.65 and 30,651.99 is: 42,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,150.70 : 77,484.65 = 30,651.99 : x
  2. Step 2: Convert to fraction form
    56,150.70/77,484.65 = 30,651.99/x
  3. Step 3: Cross multiply
    56,150.70x = 77,484.65 × 30,651.99
  4. Step 4: Simplify right side
    56,150.70x = 2,375,058,563.69
  5. Step 5: Solve for x
    x = 2,375,058,563.69/56,150.70
  6. Step 6: Final answer
    x = 42,297.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.