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Finding the Fourth Proportional to 190,463.65, 262,842.79 and 104,430.48

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Solution

The fourth proportional to 190,463.65, 262,842.79 and 104,430.48 is: 144,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,463.65 : 262,842.79 = 104,430.48 : x
  2. Step 2: Convert to fraction form
    190,463.65/262,842.79 = 104,430.48/x
  3. Step 3: Cross multiply
    190,463.65x = 262,842.79 × 104,430.48
  4. Step 4: Simplify right side
    190,463.65x = 27,448,799,151.80
  5. Step 5: Solve for x
    x = 27,448,799,151.80/190,463.65
  6. Step 6: Final answer
    x = 144,115.68

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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.