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Finding the Fourth Proportional to 228,925.60, 343,446.70 and 71,155.40

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Solution

The fourth proportional to 228,925.60, 343,446.70 and 71,155.40 is: 106,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,925.60 : 343,446.70 = 71,155.40 : x
  2. Step 2: Convert to fraction form
    228,925.60/343,446.70 = 71,155.40/x
  3. Step 3: Cross multiply
    228,925.60x = 343,446.70 × 71,155.40
  4. Step 4: Simplify right side
    228,925.60x = 24,438,087,317.18
  5. Step 5: Solve for x
    x = 24,438,087,317.18/228,925.60
  6. Step 6: Final answer
    x = 106,751.22

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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.