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Finding the Fourth Proportional to 73,404,105.60, 109,954,785.60 and 43,019,875.20

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Solution

The fourth proportional to 73,404,105.60, 109,954,785.60 and 43,019,875.20 is: 64,441,097.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,404,105.60 : 109,954,785.60 = 43,019,875.20 : x
  2. Step 2: Convert to fraction form
    73,404,105.60/109,954,785.60 = 43,019,875.20/x
  3. Step 3: Cross multiply
    73,404,105.60x = 109,954,785.60 × 43,019,875.20
  4. Step 4: Simplify right side
    73,404,105.60x = 4,730,241,154,154,757
  5. Step 5: Solve for x
    x = 4,730,241,154,154,757/73,404,105.60
  6. Step 6: Final answer
    x = 64,441,097.89

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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.