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Finding the Fourth Proportional to 60,465.60, 90,698.40 and 43,747.20

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Solution

The fourth proportional to 60,465.60, 90,698.40 and 43,747.20 is: 65,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,465.60 : 90,698.40 = 43,747.20 : x
  2. Step 2: Convert to fraction form
    60,465.60/90,698.40 = 43,747.20/x
  3. Step 3: Cross multiply
    60,465.60x = 90,698.40 × 43,747.20
  4. Step 4: Simplify right side
    60,465.60x = 3,967,801,044.48
  5. Step 5: Solve for x
    x = 3,967,801,044.48/60,465.60
  6. Step 6: Final answer
    x = 65,620.80

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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.