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Finding the Fourth Proportional to 170,432.84, 255,559.70 and 75,621.96

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Solution

The fourth proportional to 170,432.84, 255,559.70 and 75,621.96 is: 113,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,432.84 : 255,559.70 = 75,621.96 : x
  2. Step 2: Convert to fraction form
    170,432.84/255,559.70 = 75,621.96/x
  3. Step 3: Cross multiply
    170,432.84x = 255,559.70 × 75,621.96
  4. Step 4: Simplify right side
    170,432.84x = 19,325,925,411.01
  5. Step 5: Solve for x
    x = 19,325,925,411.01/170,432.84
  6. Step 6: Final answer
    x = 113,393.20

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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.