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Finding the Fourth Proportional to 88,942.80, 133,368.60 and 26,605.20

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Solution

The fourth proportional to 88,942.80, 133,368.60 and 26,605.20 is: 39,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,942.80 : 133,368.60 = 26,605.20 : x
  2. Step 2: Convert to fraction form
    88,942.80/133,368.60 = 26,605.20/x
  3. Step 3: Cross multiply
    88,942.80x = 133,368.60 × 26,605.20
  4. Step 4: Simplify right side
    88,942.80x = 3,548,298,276.72
  5. Step 5: Solve for x
    x = 3,548,298,276.72/88,942.80
  6. Step 6: Final answer
    x = 39,894.16

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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.