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Finding the Fourth Proportional to 122,502.40, 183,753.60 and 43,705.60

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Solution

The fourth proportional to 122,502.40, 183,753.60 and 43,705.60 is: 65,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,502.40 : 183,753.60 = 43,705.60 : x
  2. Step 2: Convert to fraction form
    122,502.40/183,753.60 = 43,705.60/x
  3. Step 3: Cross multiply
    122,502.40x = 183,753.60 × 43,705.60
  4. Step 4: Simplify right side
    122,502.40x = 8,031,061,340.16
  5. Step 5: Solve for x
    x = 8,031,061,340.16/122,502.40
  6. Step 6: Final answer
    x = 65,558.40

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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.