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Finding the Fourth Proportional to 274,348.67, 411,641.03 and 105,987.51

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Solution

The fourth proportional to 274,348.67, 411,641.03 and 105,987.51 is: 159,026.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,348.67 : 411,641.03 = 105,987.51 : x
  2. Step 2: Convert to fraction form
    274,348.67/411,641.03 = 105,987.51/x
  3. Step 3: Cross multiply
    274,348.67x = 411,641.03 × 105,987.51
  4. Step 4: Simplify right side
    274,348.67x = 43,628,808,048.50
  5. Step 5: Solve for x
    x = 43,628,808,048.50/274,348.67
  6. Step 6: Final answer
    x = 159,026.86

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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.