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Finding the Fourth Proportional to 239,514.95, 330,448.44 and 153,543.37

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Solution

The fourth proportional to 239,514.95, 330,448.44 and 153,543.37 is: 211,837.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,514.95 : 330,448.44 = 153,543.37 : x
  2. Step 2: Convert to fraction form
    239,514.95/330,448.44 = 153,543.37/x
  3. Step 3: Cross multiply
    239,514.95x = 330,448.44 × 153,543.37
  4. Step 4: Simplify right side
    239,514.95x = 50,738,167,088.84
  5. Step 5: Solve for x
    x = 50,738,167,088.84/239,514.95
  6. Step 6: Final answer
    x = 211,837.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.