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Finding the Fourth Proportional to 193,407.51, 266,904.81 and 108,522.75

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Solution

The fourth proportional to 193,407.51, 266,904.81 and 108,522.75 is: 149,762.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,407.51 : 266,904.81 = 108,522.75 : x
  2. Step 2: Convert to fraction form
    193,407.51/266,904.81 = 108,522.75/x
  3. Step 3: Cross multiply
    193,407.51x = 266,904.81 × 108,522.75
  4. Step 4: Simplify right side
    193,407.51x = 28,965,243,969.43
  5. Step 5: Solve for x
    x = 28,965,243,969.43/193,407.51
  6. Step 6: Final answer
    x = 149,762.77

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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.