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Finding the Fourth Proportional to 243,057.60, 364,586.40 and 159,076.80

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Solution

The fourth proportional to 243,057.60, 364,586.40 and 159,076.80 is: 238,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,057.60 : 364,586.40 = 159,076.80 : x
  2. Step 2: Convert to fraction form
    243,057.60/364,586.40 = 159,076.80/x
  3. Step 3: Cross multiply
    243,057.60x = 364,586.40 × 159,076.80
  4. Step 4: Simplify right side
    243,057.60x = 57,997,237,835.52
  5. Step 5: Solve for x
    x = 57,997,237,835.52/243,057.60
  6. Step 6: Final answer
    x = 238,615.20

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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.