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Finding the Fourth Proportional to 170,241.68, 255,403.88 and 51,915.12

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Solution

The fourth proportional to 170,241.68, 255,403.88 and 51,915.12 is: 77,885.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,241.68 : 255,403.88 = 51,915.12 : x
  2. Step 2: Convert to fraction form
    170,241.68/255,403.88 = 51,915.12/x
  3. Step 3: Cross multiply
    170,241.68x = 255,403.88 × 51,915.12
  4. Step 4: Simplify right side
    170,241.68x = 13,259,323,078.67
  5. Step 5: Solve for x
    x = 13,259,323,078.67/170,241.68
  6. Step 6: Final answer
    x = 77,885.29

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1.5x scale

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.