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Finding the Fourth Proportional to 134,806.60, 202,209.90 and 113,811.40

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Solution

The fourth proportional to 134,806.60, 202,209.90 and 113,811.40 is: 170,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,806.60 : 202,209.90 = 113,811.40 : x
  2. Step 2: Convert to fraction form
    134,806.60/202,209.90 = 113,811.40/x
  3. Step 3: Cross multiply
    134,806.60x = 202,209.90 × 113,811.40
  4. Step 4: Simplify right side
    134,806.60x = 23,013,791,812.86
  5. Step 5: Solve for x
    x = 23,013,791,812.86/134,806.60
  6. Step 6: Final answer
    x = 170,717.10

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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.