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Finding the Fourth Proportional to 144,006.65, 215,987.19 and 49,236.65

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Solution

The fourth proportional to 144,006.65, 215,987.19 and 49,236.65 is: 73,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,006.65 : 215,987.19 = 49,236.65 : x
  2. Step 2: Convert to fraction form
    144,006.65/215,987.19 = 49,236.65/x
  3. Step 3: Cross multiply
    144,006.65x = 215,987.19 × 49,236.65
  4. Step 4: Simplify right side
    144,006.65x = 10,634,485,678.51
  5. Step 5: Solve for x
    x = 10,634,485,678.51/144,006.65
  6. Step 6: Final answer
    x = 73,847.18

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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.