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Finding the Fourth Proportional to 77,608.60, 116,429.10 and 44,301.40

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Solution

The fourth proportional to 77,608.60, 116,429.10 and 44,301.40 is: 66,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,608.60 : 116,429.10 = 44,301.40 : x
  2. Step 2: Convert to fraction form
    77,608.60/116,429.10 = 44,301.40/x
  3. Step 3: Cross multiply
    77,608.60x = 116,429.10 × 44,301.40
  4. Step 4: Simplify right side
    77,608.60x = 5,157,972,130.74
  5. Step 5: Solve for x
    x = 5,157,972,130.74/77,608.60
  6. Step 6: Final answer
    x = 66,461.35

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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.