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Finding the Fourth Proportional to 355,085.60, 531,753.60 and 236,112.80

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Solution

The fourth proportional to 355,085.60, 531,753.60 and 236,112.80 is: 353,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,085.60 : 531,753.60 = 236,112.80 : x
  2. Step 2: Convert to fraction form
    355,085.60/531,753.60 = 236,112.80/x
  3. Step 3: Cross multiply
    355,085.60x = 531,753.60 × 236,112.80
  4. Step 4: Simplify right side
    355,085.60x = 125,553,831,406.08
  5. Step 5: Solve for x
    x = 125,553,831,406.08/355,085.60
  6. Step 6: Final answer
    x = 353,587.51

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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.