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Finding the Fourth Proportional to 171,113.48, 256,670.70 and 100,896.20

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Solution

The fourth proportional to 171,113.48, 256,670.70 and 100,896.20 is: 151,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,113.48 : 256,670.70 = 100,896.20 : x
  2. Step 2: Convert to fraction form
    171,113.48/256,670.70 = 100,896.20/x
  3. Step 3: Cross multiply
    171,113.48x = 256,670.70 × 100,896.20
  4. Step 4: Simplify right side
    171,113.48x = 25,897,098,281.34
  5. Step 5: Solve for x
    x = 25,897,098,281.34/171,113.48
  6. Step 6: Final answer
    x = 151,344.58

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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.