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Finding the Fourth Proportional to 343,447.90, 514,808.25 and 115,526.54

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Solution

The fourth proportional to 343,447.90, 514,808.25 and 115,526.54 is: 173,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,447.90 : 514,808.25 = 115,526.54 : x
  2. Step 2: Convert to fraction form
    343,447.90/514,808.25 = 115,526.54/x
  3. Step 3: Cross multiply
    343,447.90x = 514,808.25 × 115,526.54
  4. Step 4: Simplify right side
    343,447.90x = 59,474,015,885.96
  5. Step 5: Solve for x
    x = 59,474,015,885.96/343,447.90
  6. Step 6: Final answer
    x = 173,167.50

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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.