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Finding the Fourth Proportional to 144,690.95, 217,002.40 and 39,484.91

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Solution

The fourth proportional to 144,690.95, 217,002.40 and 39,484.91 is: 59,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,690.95 : 217,002.40 = 39,484.91 : x
  2. Step 2: Convert to fraction form
    144,690.95/217,002.40 = 39,484.91/x
  3. Step 3: Cross multiply
    144,690.95x = 217,002.40 × 39,484.91
  4. Step 4: Simplify right side
    144,690.95x = 8,568,320,233.78
  5. Step 5: Solve for x
    x = 8,568,320,233.78/144,690.95
  6. Step 6: Final answer
    x = 59,218.08

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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.