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Finding the Fourth Proportional to 144,480.48, 199,276.56 and 104,326.80

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Solution

The fourth proportional to 144,480.48, 199,276.56 and 104,326.80 is: 143,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,480.48 : 199,276.56 = 104,326.80 : x
  2. Step 2: Convert to fraction form
    144,480.48/199,276.56 = 104,326.80/x
  3. Step 3: Cross multiply
    144,480.48x = 199,276.56 × 104,326.80
  4. Step 4: Simplify right side
    144,480.48x = 20,789,885,819.81
  5. Step 5: Solve for x
    x = 20,789,885,819.81/144,480.48
  6. Step 6: Final answer
    x = 143,894.08

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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.