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Finding the Fourth Proportional to 144,618.84, 216,761.94 and 55,833.48

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Solution

The fourth proportional to 144,618.84, 216,761.94 and 55,833.48 is: 83,686.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,618.84 : 216,761.94 = 55,833.48 : x
  2. Step 2: Convert to fraction form
    144,618.84/216,761.94 = 55,833.48/x
  3. Step 3: Cross multiply
    144,618.84x = 216,761.94 × 55,833.48
  4. Step 4: Simplify right side
    144,618.84x = 12,102,573,441.75
  5. Step 5: Solve for x
    x = 12,102,573,441.75/144,618.84
  6. Step 6: Final answer
    x = 83,686.01

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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.