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Finding the Fourth Proportional to 341,992.96, 513,044.58 and 105,335.56

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Solution

The fourth proportional to 341,992.96, 513,044.58 and 105,335.56 is: 158,020.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,992.96 : 513,044.58 = 105,335.56 : x
  2. Step 2: Convert to fraction form
    341,992.96/513,044.58 = 105,335.56/x
  3. Step 3: Cross multiply
    341,992.96x = 513,044.58 × 105,335.56
  4. Step 4: Simplify right side
    341,992.96x = 54,041,838,139.26
  5. Step 5: Solve for x
    x = 54,041,838,139.26/341,992.96
  6. Step 6: Final answer
    x = 158,020.32

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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.