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Finding the Fourth Proportional to 253,699.63, 349,863.91 and 151,708.58

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Solution

The fourth proportional to 253,699.63, 349,863.91 and 151,708.58 is: 209,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,699.63 : 349,863.91 = 151,708.58 : x
  2. Step 2: Convert to fraction form
    253,699.63/349,863.91 = 151,708.58/x
  3. Step 3: Cross multiply
    253,699.63x = 349,863.91 × 151,708.58
  4. Step 4: Simplify right side
    253,699.63x = 53,077,356,162.75
  5. Step 5: Solve for x
    x = 53,077,356,162.75/253,699.63
  6. Step 6: Final answer
    x = 209,213.38

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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.