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Finding the Fourth Proportional to 144,273.18, 216,393.03 and 39,100.08

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Solution

The fourth proportional to 144,273.18, 216,393.03 and 39,100.08 is: 58,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,273.18 : 216,393.03 = 39,100.08 : x
  2. Step 2: Convert to fraction form
    144,273.18/216,393.03 = 39,100.08/x
  3. Step 3: Cross multiply
    144,273.18x = 216,393.03 × 39,100.08
  4. Step 4: Simplify right side
    144,273.18x = 8,460,984,784.44
  5. Step 5: Solve for x
    x = 8,460,984,784.44/144,273.18
  6. Step 6: Final answer
    x = 58,645.58

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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.