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Finding the Fourth Proportional to 134,808.60, 202,212.90 and 113,813.40

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Solution

The fourth proportional to 134,808.60, 202,212.90 and 113,813.40 is: 170,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,808.60 : 202,212.90 = 113,813.40 : x
  2. Step 2: Convert to fraction form
    134,808.60/202,212.90 = 113,813.40/x
  3. Step 3: Cross multiply
    134,808.60x = 202,212.90 × 113,813.40
  4. Step 4: Simplify right side
    134,808.60x = 23,014,537,672.86
  5. Step 5: Solve for x
    x = 23,014,537,672.86/134,808.60
  6. Step 6: Final answer
    x = 170,720.10

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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.