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Finding the Fourth Proportional to 77,658.60, 116,504.10 and 44,351.40

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Solution

The fourth proportional to 77,658.60, 116,504.10 and 44,351.40 is: 66,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,658.60 : 116,504.10 = 44,351.40 : x
  2. Step 2: Convert to fraction form
    77,658.60/116,504.10 = 44,351.40/x
  3. Step 3: Cross multiply
    77,658.60x = 116,504.10 × 44,351.40
  4. Step 4: Simplify right side
    77,658.60x = 5,167,119,940.74
  5. Step 5: Solve for x
    x = 5,167,119,940.74/77,658.60
  6. Step 6: Final answer
    x = 66,536.35

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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.