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Finding the Fourth Proportional to 342,532.18, 513,847.48 and 105,893.31

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Solution

The fourth proportional to 342,532.18, 513,847.48 and 105,893.31 is: 158,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,532.18 : 513,847.48 = 105,893.31 : x
  2. Step 2: Convert to fraction form
    342,532.18/513,847.48 = 105,893.31/x
  3. Step 3: Cross multiply
    342,532.18x = 513,847.48 × 105,893.31
  4. Step 4: Simplify right side
    342,532.18x = 54,413,010,492.36
  5. Step 5: Solve for x
    x = 54,413,010,492.36/342,532.18
  6. Step 6: Final answer
    x = 158,855.18

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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.