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Finding the Fourth Proportional to 561,100.20, 841,650.30 and 161,705.40

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Solution

The fourth proportional to 561,100.20, 841,650.30 and 161,705.40 is: 242,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,100.20 : 841,650.30 = 161,705.40 : x
  2. Step 2: Convert to fraction form
    561,100.20/841,650.30 = 161,705.40/x
  3. Step 3: Cross multiply
    561,100.20x = 841,650.30 × 161,705.40
  4. Step 4: Simplify right side
    561,100.20x = 136,099,398,421.62
  5. Step 5: Solve for x
    x = 136,099,398,421.62/561,100.20
  6. Step 6: Final answer
    x = 242,558.10

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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.