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Finding the Fourth Proportional to 134,607.60, 201,862.80 and 68,025.60

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Solution

The fourth proportional to 134,607.60, 201,862.80 and 68,025.60 is: 102,013.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,607.60 : 201,862.80 = 68,025.60 : x
  2. Step 2: Convert to fraction form
    134,607.60/201,862.80 = 68,025.60/x
  3. Step 3: Cross multiply
    134,607.60x = 201,862.80 × 68,025.60
  4. Step 4: Simplify right side
    134,607.60x = 13,731,838,087.68
  5. Step 5: Solve for x
    x = 13,731,838,087.68/134,607.60
  6. Step 6: Final answer
    x = 102,013.84

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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.