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Finding the Fourth Proportional to 103,493.59, 154,930.96 and 63,386.29

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Solution

The fourth proportional to 103,493.59, 154,930.96 and 63,386.29 is: 94,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,493.59 : 154,930.96 = 63,386.29 : x
  2. Step 2: Convert to fraction form
    103,493.59/154,930.96 = 63,386.29/x
  3. Step 3: Cross multiply
    103,493.59x = 154,930.96 × 63,386.29
  4. Step 4: Simplify right side
    103,493.59x = 9,820,497,985.88
  5. Step 5: Solve for x
    x = 9,820,497,985.88/103,493.59
  6. Step 6: Final answer
    x = 94,889.92

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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.