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Finding the Fourth Proportional to 96,341.54, 144,489.62 and 54,239.90

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Solution

The fourth proportional to 96,341.54, 144,489.62 and 54,239.90 is: 81,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,341.54 : 144,489.62 = 54,239.90 : x
  2. Step 2: Convert to fraction form
    96,341.54/144,489.62 = 54,239.90/x
  3. Step 3: Cross multiply
    96,341.54x = 144,489.62 × 54,239.90
  4. Step 4: Simplify right side
    96,341.54x = 7,837,102,539.84
  5. Step 5: Solve for x
    x = 7,837,102,539.84/96,341.54
  6. Step 6: Final answer
    x = 81,347.08

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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.