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Finding the Fourth Proportional to 60,367.48, 90,646 and 51,128.62

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Solution

The fourth proportional to 60,367.48, 90,646 and 51,128.62 is: 76,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,367.48 : 90,646 = 51,128.62 : x
  2. Step 2: Convert to fraction form
    60,367.48/90,646 = 51,128.62/x
  3. Step 3: Cross multiply
    60,367.48x = 90,646 × 51,128.62
  4. Step 4: Simplify right side
    60,367.48x = 4,634,604,888.52
  5. Step 5: Solve for x
    x = 4,634,604,888.52/60,367.48
  6. Step 6: Final answer
    x = 76,773.20

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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.