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Finding the Fourth Proportional to 353,811.30, 530,512.29 and 117,090.42

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Solution

The fourth proportional to 353,811.30, 530,512.29 and 117,090.42 is: 175,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,811.30 : 530,512.29 = 117,090.42 : x
  2. Step 2: Convert to fraction form
    353,811.30/530,512.29 = 117,090.42/x
  3. Step 3: Cross multiply
    353,811.30x = 530,512.29 × 117,090.42
  4. Step 4: Simplify right side
    353,811.30x = 62,117,906,851.26
  5. Step 5: Solve for x
    x = 62,117,906,851.26/353,811.30
  6. Step 6: Final answer
    x = 175,567.90

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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.