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Finding the Fourth Proportional to 355,063.60, 531,720.60 and 236,090.80

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Solution

The fourth proportional to 355,063.60, 531,720.60 and 236,090.80 is: 353,554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,063.60 : 531,720.60 = 236,090.80 : x
  2. Step 2: Convert to fraction form
    355,063.60/531,720.60 = 236,090.80/x
  3. Step 3: Cross multiply
    355,063.60x = 531,720.60 × 236,090.80
  4. Step 4: Simplify right side
    355,063.60x = 125,534,341,830.48
  5. Step 5: Solve for x
    x = 125,534,341,830.48/355,063.60
  6. Step 6: Final answer
    x = 353,554.52

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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.