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Finding the Fourth Proportional to 54,606,624.80, 81,909,937.20 and 49,126,877.60

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Solution

The fourth proportional to 54,606,624.80, 81,909,937.20 and 49,126,877.60 is: 73,690,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,606,624.80 : 81,909,937.20 = 49,126,877.60 : x
  2. Step 2: Convert to fraction form
    54,606,624.80/81,909,937.20 = 49,126,877.60/x
  3. Step 3: Cross multiply
    54,606,624.80x = 81,909,937.20 × 49,126,877.60
  4. Step 4: Simplify right side
    54,606,624.80x = 4,023,979,459,048,087
  5. Step 5: Solve for x
    x = 4,023,979,459,048,087/54,606,624.80
  6. Step 6: Final answer
    x = 73,690,316.40

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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.