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Finding the Fourth Proportional to 171,432.60, 239,415.15 and 171,432.60

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Solution

The fourth proportional to 171,432.60, 239,415.15 and 171,432.60 is: 239,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,432.60 : 239,415.15 = 171,432.60 : x
  2. Step 2: Convert to fraction form
    171,432.60/239,415.15 = 171,432.60/x
  3. Step 3: Cross multiply
    171,432.60x = 239,415.15 × 171,432.60
  4. Step 4: Simplify right side
    171,432.60x = 41,043,561,643.89
  5. Step 5: Solve for x
    x = 41,043,561,643.89/171,432.60
  6. Step 6: Final answer
    x = 239,415.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.