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Finding the Fourth Proportional to 343,615.01, 515,496.53 and 103,708.82

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Solution

The fourth proportional to 343,615.01, 515,496.53 and 103,708.82 is: 155,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,615.01 : 515,496.53 = 103,708.82 : x
  2. Step 2: Convert to fraction form
    343,615.01/515,496.53 = 103,708.82/x
  3. Step 3: Cross multiply
    343,615.01x = 515,496.53 × 103,708.82
  4. Step 4: Simplify right side
    343,615.01x = 53,461,538,388.41
  5. Step 5: Solve for x
    x = 53,461,538,388.41/343,615.01
  6. Step 6: Final answer
    x = 155,585.58

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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.