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Finding the Fourth Proportional to 64,672,387.80, 97,008,581.70 and 56,169,331.80

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Solution

The fourth proportional to 64,672,387.80, 97,008,581.70 and 56,169,331.80 is: 84,253,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,672,387.80 : 97,008,581.70 = 56,169,331.80 : x
  2. Step 2: Convert to fraction form
    64,672,387.80/97,008,581.70 = 56,169,331.80/x
  3. Step 3: Cross multiply
    64,672,387.80x = 97,008,581.70 × 56,169,331.80
  4. Step 4: Simplify right side
    64,672,387.80x = 5,448,907,212,954,708
  5. Step 5: Solve for x
    x = 5,448,907,212,954,708/64,672,387.80
  6. Step 6: Final answer
    x = 84,253,997.70

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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.