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Finding the Fourth Proportional to 342,038.75, 513,168.77 and 164,522.57

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Solution

The fourth proportional to 342,038.75, 513,168.77 and 164,522.57 is: 246,837.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,038.75 : 513,168.77 = 164,522.57 : x
  2. Step 2: Convert to fraction form
    342,038.75/513,168.77 = 164,522.57/x
  3. Step 3: Cross multiply
    342,038.75x = 513,168.77 × 164,522.57
  4. Step 4: Simplify right side
    342,038.75x = 84,427,842,729.60
  5. Step 5: Solve for x
    x = 84,427,842,729.60/342,038.75
  6. Step 6: Final answer
    x = 246,837.07

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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.