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Finding the Fourth Proportional to 346,652.25, 519,912.62 and 168,980.57

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Solution

The fourth proportional to 346,652.25, 519,912.62 and 168,980.57 is: 253,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,652.25 : 519,912.62 = 168,980.57 : x
  2. Step 2: Convert to fraction form
    346,652.25/519,912.62 = 168,980.57/x
  3. Step 3: Cross multiply
    346,652.25x = 519,912.62 × 168,980.57
  4. Step 4: Simplify right side
    346,652.25x = 87,855,130,032.89
  5. Step 5: Solve for x
    x = 87,855,130,032.89/346,652.25
  6. Step 6: Final answer
    x = 253,438.80

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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.