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Finding the Fourth Proportional to 144,315.54, 216,473.40 and 39,134.52

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Solution

The fourth proportional to 144,315.54, 216,473.40 and 39,134.52 is: 58,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,315.54 : 216,473.40 = 39,134.52 : x
  2. Step 2: Convert to fraction form
    144,315.54/216,473.40 = 39,134.52/x
  3. Step 3: Cross multiply
    144,315.54x = 216,473.40 × 39,134.52
  4. Step 4: Simplify right side
    144,315.54x = 8,471,582,601.77
  5. Step 5: Solve for x
    x = 8,471,582,601.77/144,315.54
  6. Step 6: Final answer
    x = 58,701.80

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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.