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Finding the Fourth Proportional to 192,994.66, 266,301.63 and 121,323.94

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Solution

The fourth proportional to 192,994.66, 266,301.63 and 121,323.94 is: 167,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,994.66 : 266,301.63 = 121,323.94 : x
  2. Step 2: Convert to fraction form
    192,994.66/266,301.63 = 121,323.94/x
  3. Step 3: Cross multiply
    192,994.66x = 266,301.63 × 121,323.94
  4. Step 4: Simplify right side
    192,994.66x = 32,308,762,980.02
  5. Step 5: Solve for x
    x = 32,308,762,980.02/192,994.66
  6. Step 6: Final answer
    x = 167,407.55

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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.