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Finding the Fourth Proportional to 68,688.41, 103,070.88 and 37,097.82

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Solution

The fourth proportional to 68,688.41, 103,070.88 and 37,097.82 is: 55,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688.41 : 103,070.88 = 37,097.82 : x
  2. Step 2: Convert to fraction form
    68,688.41/103,070.88 = 37,097.82/x
  3. Step 3: Cross multiply
    68,688.41x = 103,070.88 × 37,097.82
  4. Step 4: Simplify right side
    68,688.41x = 3,823,704,953.48
  5. Step 5: Solve for x
    x = 3,823,704,953.48/68,688.41
  6. Step 6: Final answer
    x = 55,667.40

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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.