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Finding the Fourth Proportional to 144,656.43, 199,649.53 and 86,509.37

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Solution

The fourth proportional to 144,656.43, 199,649.53 and 86,509.37 is: 119,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,656.43 : 199,649.53 = 86,509.37 : x
  2. Step 2: Convert to fraction form
    144,656.43/199,649.53 = 86,509.37/x
  3. Step 3: Cross multiply
    144,656.43x = 199,649.53 × 86,509.37
  4. Step 4: Simplify right side
    144,656.43x = 17,271,553,846.58
  5. Step 5: Solve for x
    x = 17,271,553,846.58/144,656.43
  6. Step 6: Final answer
    x = 119,397.07

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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.