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Finding the Fourth Proportional to 104,800.40, 157,200.60 and 84,064.40

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Solution

The fourth proportional to 104,800.40, 157,200.60 and 84,064.40 is: 126,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,800.40 : 157,200.60 = 84,064.40 : x
  2. Step 2: Convert to fraction form
    104,800.40/157,200.60 = 84,064.40/x
  3. Step 3: Cross multiply
    104,800.40x = 157,200.60 × 84,064.40
  4. Step 4: Simplify right side
    104,800.40x = 13,214,974,118.64
  5. Step 5: Solve for x
    x = 13,214,974,118.64/104,800.40
  6. Step 6: Final answer
    x = 126,096.60

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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.