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Finding the Fourth Proportional to 104,434.40, 156,700.20 and 54,570.80

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Solution

The fourth proportional to 104,434.40, 156,700.20 and 54,570.80 is: 81,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,434.40 : 156,700.20 = 54,570.80 : x
  2. Step 2: Convert to fraction form
    104,434.40/156,700.20 = 54,570.80/x
  3. Step 3: Cross multiply
    104,434.40x = 156,700.20 × 54,570.80
  4. Step 4: Simplify right side
    104,434.40x = 8,551,255,274.16
  5. Step 5: Solve for x
    x = 8,551,255,274.16/104,434.40
  6. Step 6: Final answer
    x = 81,881.60

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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.