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Finding the Fourth Proportional to 144,519.68, 216,725.70 and 49,723.40

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Solution

The fourth proportional to 144,519.68, 216,725.70 and 49,723.40 is: 74,566.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,519.68 : 216,725.70 = 49,723.40 : x
  2. Step 2: Convert to fraction form
    144,519.68/216,725.70 = 49,723.40/x
  3. Step 3: Cross multiply
    144,519.68x = 216,725.70 × 49,723.40
  4. Step 4: Simplify right side
    144,519.68x = 10,776,338,671.38
  5. Step 5: Solve for x
    x = 10,776,338,671.38/144,519.68
  6. Step 6: Final answer
    x = 74,566.58

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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.