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Finding the Fourth Proportional to 134,653.60, 201,931.80 and 68,071.60

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Solution

The fourth proportional to 134,653.60, 201,931.80 and 68,071.60 is: 102,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,653.60 : 201,931.80 = 68,071.60 : x
  2. Step 2: Convert to fraction form
    134,653.60/201,931.80 = 68,071.60/x
  3. Step 3: Cross multiply
    134,653.60x = 201,931.80 × 68,071.60
  4. Step 4: Simplify right side
    134,653.60x = 13,745,820,716.88
  5. Step 5: Solve for x
    x = 13,745,820,716.88/134,653.60
  6. Step 6: Final answer
    x = 102,082.83

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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.