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Finding the Fourth Proportional to 292,399.42, 438,614.79 and 92,734.96

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Solution

The fourth proportional to 292,399.42, 438,614.79 and 92,734.96 is: 139,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,399.42 : 438,614.79 = 92,734.96 : x
  2. Step 2: Convert to fraction form
    292,399.42/438,614.79 = 92,734.96/x
  3. Step 3: Cross multiply
    292,399.42x = 438,614.79 × 92,734.96
  4. Step 4: Simplify right side
    292,399.42x = 40,674,925,006.06
  5. Step 5: Solve for x
    x = 40,674,925,006.06/292,399.42
  6. Step 6: Final answer
    x = 139,107.41

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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.