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Finding the Fourth Proportional to 144,012.48, 215,926.26 and 59,830.80

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Solution

The fourth proportional to 144,012.48, 215,926.26 and 59,830.80 is: 89,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,012.48 : 215,926.26 = 59,830.80 : x
  2. Step 2: Convert to fraction form
    144,012.48/215,926.26 = 59,830.80/x
  3. Step 3: Cross multiply
    144,012.48x = 215,926.26 × 59,830.80
  4. Step 4: Simplify right side
    144,012.48x = 12,919,040,876.81
  5. Step 5: Solve for x
    x = 12,919,040,876.81/144,012.48
  6. Step 6: Final answer
    x = 89,707.79

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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.