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Finding the Fourth Proportional to 238,397.44, 357,599.28 and 103,430.56

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Solution

The fourth proportional to 238,397.44, 357,599.28 and 103,430.56 is: 155,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,397.44 : 357,599.28 = 103,430.56 : x
  2. Step 2: Convert to fraction form
    238,397.44/357,599.28 = 103,430.56/x
  3. Step 3: Cross multiply
    238,397.44x = 357,599.28 × 103,430.56
  4. Step 4: Simplify right side
    238,397.44x = 36,986,693,786.00
  5. Step 5: Solve for x
    x = 36,986,693,786.00/238,397.44
  6. Step 6: Final answer
    x = 155,147.19

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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.