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Finding the Fourth Proportional to 353,419.20, 530,128.80 and 241,444.80

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Solution

The fourth proportional to 353,419.20, 530,128.80 and 241,444.80 is: 362,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,419.20 : 530,128.80 = 241,444.80 : x
  2. Step 2: Convert to fraction form
    353,419.20/530,128.80 = 241,444.80/x
  3. Step 3: Cross multiply
    353,419.20x = 530,128.80 × 241,444.80
  4. Step 4: Simplify right side
    353,419.20x = 127,996,842,090.24
  5. Step 5: Solve for x
    x = 127,996,842,090.24/353,419.20
  6. Step 6: Final answer
    x = 362,167.20

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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.