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Finding the Fourth Proportional to 170,436.64, 255,637.68 and 59,620

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Solution

The fourth proportional to 170,436.64, 255,637.68 and 59,620 is: 89,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,436.64 : 255,637.68 = 59,620 : x
  2. Step 2: Convert to fraction form
    170,436.64/255,637.68 = 59,620/x
  3. Step 3: Cross multiply
    170,436.64x = 255,637.68 × 59,620
  4. Step 4: Simplify right side
    170,436.64x = 15,241,118,481.60
  5. Step 5: Solve for x
    x = 15,241,118,481.60/170,436.64
  6. Step 6: Final answer
    x = 89,423.96

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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.