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Finding the Fourth Proportional to 74,956.60, 103,447.02 and 43,132.60

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Solution

The fourth proportional to 74,956.60, 103,447.02 and 43,132.60 is: 59,526.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,956.60 : 103,447.02 = 43,132.60 : x
  2. Step 2: Convert to fraction form
    74,956.60/103,447.02 = 43,132.60/x
  3. Step 3: Cross multiply
    74,956.60x = 103,447.02 × 43,132.60
  4. Step 4: Simplify right side
    74,956.60x = 4,461,938,934.85
  5. Step 5: Solve for x
    x = 4,461,938,934.85/74,956.60
  6. Step 6: Final answer
    x = 59,526.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.