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Finding the Fourth Proportional to 241,239.96, 361,862.28 and 91,440

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Solution

The fourth proportional to 241,239.96, 361,862.28 and 91,440 is: 137,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,239.96 : 361,862.28 = 91,440 : x
  2. Step 2: Convert to fraction form
    241,239.96/361,862.28 = 91,440/x
  3. Step 3: Cross multiply
    241,239.96x = 361,862.28 × 91,440
  4. Step 4: Simplify right side
    241,239.96x = 33,088,686,883.20
  5. Step 5: Solve for x
    x = 33,088,686,883.20/241,239.96
  6. Step 6: Final answer
    x = 137,160.89

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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.