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Finding the Fourth Proportional to 343,382.32, 515,062.32 and 103,497.52

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Solution

The fourth proportional to 343,382.32, 515,062.32 and 103,497.52 is: 155,242.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,382.32 : 515,062.32 = 103,497.52 : x
  2. Step 2: Convert to fraction form
    343,382.32/515,062.32 = 103,497.52/x
  3. Step 3: Cross multiply
    343,382.32x = 515,062.32 × 103,497.52
  4. Step 4: Simplify right side
    343,382.32x = 53,307,672,765.45
  5. Step 5: Solve for x
    x = 53,307,672,765.45/343,382.32
  6. Step 6: Final answer
    x = 155,242.92

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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.