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Finding the Fourth Proportional to 68,627.40, 102,854.70 and 60,851.40

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Solution

The fourth proportional to 68,627.40, 102,854.70 and 60,851.40 is: 91,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,627.40 : 102,854.70 = 60,851.40 : x
  2. Step 2: Convert to fraction form
    68,627.40/102,854.70 = 60,851.40/x
  3. Step 3: Cross multiply
    68,627.40x = 102,854.70 × 60,851.40
  4. Step 4: Simplify right side
    68,627.40x = 6,258,852,491.58
  5. Step 5: Solve for x
    x = 6,258,852,491.58/68,627.40
  6. Step 6: Final answer
    x = 91,200.49

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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.